Medical Disclaimer This article is for educational purposes only and does not replace medical advice, diagnosis, or treatment. Breathing problems during sleep can be serious. If your child has pauses in breathing, blue or gray color, trouble breathing, severe sleepiness, repeated vomiting with lethargy, or you feel something is seriously wrong, seek urgent medical care or call emergency services.
Snoring in children is easy to dismiss.
Parents may hear:
- “They are just a noisy sleeper.”
- “They will grow out of it.”
- “All kids snore sometimes.”
- “It is probably allergies.”
- “It is probably big tonsils.”
- Sometimes that is true.
But in children with craniosynostosis, especially syndromic craniosynostosis, snoring and noisy breathing deserve a closer look.
Parents may wonder:
- Can craniosynostosis cause sleep apnea?
- Is snoring a red flag?
- What does the midface have to do with breathing?
- Why does my child breathe through their mouth?
- What is obstructive sleep apnea?
- What is a sleep study?
- Does every child with craniosynostosis need a sleep study?
- Can sleep apnea affect behavior, learning, growth, or pressure inside the skull?
- Can tonsil surgery fix it?
- When does midface advancement become part of the discussion?
The short answer is:
Craniosynostosis can be connected to sleep apnea, especially when it is syndromic, multisuture, or associated with midface hypoplasia, shallow facial growth, narrow nasal passages, jaw differences, enlarged tonsils or adenoids, or airway obstruction at more than one level. Snoring is common in children, and not every snoring child has sleep apnea. But regular snoring, pauses in breathing, gasping, restless sleep, mouth breathing, morning headaches, daytime sleepiness, hyperactivity, learning problems, or poor growth should be discussed with your child’s care team.
Johns Hopkins states that children with syndromic craniosynostosis who have underdeveloped facial bones, or midface hypoplasia, may develop airway obstruction and obstructive sleep apnea, and that sleep experts may perform an overnight sleep study, called a polysomnogram, when symptoms suggest sleep apnea. (Johns Hopkins Medicine)
A patient version of the European craniosynostosis guideline states that children with craniosynostosis syndromes are at risk for obstructive sleep apnea and that respiratory disorders can also contribute to increased intracranial pressure; it recommends specialized sleep screening for children with syndromic craniosynostosis when OSA is suspected and annual polysomnography in syndromic craniosynostosis until at least age 6 in that guideline’s model of care. (myFace)
The key parent-friendly message is:
Snoring is not automatically dangerous, but in craniosynostosis it should not be ignored. The question is whether the child is breathing normally during sleep.
Quick Answer: Can Craniosynostosis Cause Sleep Apnea?
Yes, craniosynostosis can be associated with sleep apnea, especially in syndromic craniosynostosis.
Sleep apnea in craniosynostosis is usually obstructive, meaning the child tries to breathe, but airflow is partly or completely blocked somewhere in the upper airway during sleep.
In craniosynostosis, obstruction may be related to:
Midface hypoplasia
Small or retruded upper jaw
Narrow nasal passages
Narrow nasopharynx
High or narrow palate
Large tonsils or adenoids
Jaw position
Tongue-base obstruction
Cleft palate or palate differences
Syndromic craniofacial anatomy
Multiple levels of airway narrowing
Johns Hopkins describes midface hypoplasia in syndromic craniosynostosis as a facial-bone difference that may cause airway obstruction and obstructive sleep apnea. (Johns Hopkins Medicine) CHOP similarly states that in Apert syndrome, decreased growth of the central face can contribute to obstructive sleep apnea and airway concerns, and it gives the same warning for Pfeiffer syndrome. (Children's Hospital of Philadelphia)
The parent-friendly takeaway:
Craniosynostosis does not always cause sleep apnea, but craniofacial anatomy can make some children more vulnerable to airway blockage during sleep.
What Is Obstructive Sleep Apnea?
Obstructive sleep apnea , often shortened to OSA, means breathing is repeatedly blocked during sleep.
The child may still be trying to breathe, but air cannot move normally through the nose, mouth, throat, or upper airway.
The American Thoracic Society explains that obstructive sleep apnea affects a child’s breathing during sleep because airflow into the lungs is blocked; these pauses can happen repeatedly and lead to poor sleep quality. (American Thoracic Society) Johns Hopkins describes pediatric obstructive sleep apnea as brief breathing stops during sleep due to upper-airway blockage, often with snoring or noisy breathing. (Johns Hopkins Medicine)
A simple way to explain it:
The child is asleep. The airway narrows or closes. Breathing becomes noisy, blocked, or interrupted. The brain and body may briefly wake the child enough to reopen the airway. This can happen many times a night.
Is Snoring Always Sleep Apnea?
No.
Some children snore occasionally when they have a cold, allergies, nasal congestion, or an upper respiratory infection.
The American Academy of Pediatrics explains that snoring is common in children, while obstructive sleep apnea is less common. The AAP says occasional snoring with an upper respiratory infection is less concerning than snoring that happens at least 3 nights per week and is associated with other symptoms or signs. (American Academy of Pediatrics)
The practical message:
Not all snoring is sleep apnea. But regular snoring, loud snoring, snoring with pauses, or snoring in a child with craniofacial risk factors should be discussed with the care team.
Why Snoring Matters More in Syndromic Craniosynostosis
Children with syndromic craniosynostosis may have multiple airway risk factors at the same time.
These can include:
Midface hypoplasia
Small nasal airway
High or narrow palate
Jaw misalignment
Prominent eyes and shallow orbits
Cleft palate in some children
Dental crowding
Tonsil or adenoid enlargement
Tracheal differences in some syndromes
Sleep apnea symptoms
Raised-pressure risk
Johns Hopkins states that syndromic craniosynostosis can involve multiple fused sutures and underdeveloped facial bones, and that midface hypoplasia may lead to eye irritation, airway obstruction, obstructive sleep apnea, and dental anomalies. (Johns Hopkins Medicine) Seattle Children’s notes that in Apert syndrome, midface hypoplasia can affect jaw alignment and cause problems with chewing and breathing during sleep, including obstructive sleep apnea. (Seattle Children's)
The parent-friendly takeaway:
In syndromic craniosynostosis, snoring may be a clue that the facial bones, nose, throat, tonsils, adenoids, or airway need a closer look.
Which Craniosynostosis Patients Are More Likely to Need Sleep Evaluation?
Sleep evaluation may be more likely if a child has:
Syndromic craniosynostosis
Multisuture craniosynostosis
Apert syndrome
Crouzon syndrome
Pfeiffer syndrome
Saethre-Chotzen syndrome with airway concerns
Midface hypoplasia
Prominent or retruded jaw differences
Narrow nasal passages
Cleft palate or palate differences
Enlarged tonsils or adenoids
Snoring at least several nights per week
Pauses in breathing
Gasping or choking during sleep
Restless sleep
Daytime behavior or learning issues
Poor growth or failure to thrive
Raised intracranial pressure concerns
The European patient guideline states that in children with multisuture and syndromic craniosynostosis, OSA occurs in a high proportion of patients and is most severe and frequent in Apert, Crouzon, and Pfeiffer syndromes. (myFace) Because this estimate comes from a guideline summary and may reflect specific study populations, parents should ask their child’s craniofacial team how risk applies to their child’s exact diagnosis.
The practical message:
Sleep apnea risk is highest in syndromic and multisuture craniosynostosis, but symptoms should be taken seriously in any child.
Why Midface Growth Matters
The midface includes the middle part of the face: the upper jaw, cheekbones, nose area, lower eye-socket region, and related airway spaces.
When the midface does not grow forward enough, the upper jaw and nasal passages can be smaller or set back. This is called midface hypoplasia.
Midface hypoplasia can contribute to:
- Narrow nasal breathing
- Mouth breathing
- Crowded upper airway
- Underbite
- Dental crowding
- Chewing problems
- Eye exposure or prominent eyes
- Obstructive sleep apnea
CHOP states that midface hypoplasia means decreased growth of the midface and that decreased growth of the central face can contribute to obstructive sleep apnea and airway concerns in Apert and Pfeiffer syndromes. (Children's Hospital of Philadelphia) Johns Hopkins also explains that surgery to advance the midface may help protect the eyes, treat obstructive sleep apnea, and bring the teeth closer together in children with syndromic craniosynostosis and midface hypoplasia. (Johns Hopkins Medicine)
The parent-friendly takeaway:
Midface growth affects more than appearance. It can affect breathing, chewing, bite, eye protection, and sleep.
Nighttime Symptoms Parents May Notice
Possible nighttime symptoms of obstructive sleep apnea include:
Snoring
Gasping
Choking
Snorting
Pauses in breathing
Restless sleep
Sweating during sleep
Mouth breathing
Sleeping with the neck extended
Sleeping sitting up or propped
Frequent awakenings
Unusual sleep positions
Bedwetting in an older child
Noisy breathing
The American Thoracic Society lists clues such as snoring at least 3 nights per week, gasping, choking, noisy breathing, pauses with a snort, labored breathing, mouth breathing, restless sleep, unusual sleep positions, frequent awakenings, bedwetting, and morning headaches. (American Thoracic Society) The European craniosynostosis guideline lists nighttime OSA symptoms including restless sleep, snoring, apnea, bedwetting, and sweating. (myFace)
The practical message:
A short video of your child sleeping can be very helpful for the pediatrician, ENT, sleep specialist, or craniofacial team.
Daytime Symptoms Parents May Notice
Children with sleep apnea may not always look sleepy during the day.
Some children show sleep problems as behavior problems.
Daytime symptoms may include:
Hyperactivity
Irritability
Mood changes
Attention problems
School problems
Learning issues
Morning headaches
Dry mouth in the morning
Fatigue
Unusual sleepiness
Poor growth
Hard time waking up
Behavior that looks like ADHD
The American Thoracic Society lists daytime problems such as attention problems, poor school performance, hyperactivity, moodiness, crankiness, sleepiness, fatigue, and morning headaches. (American Thoracic Society) HealthyChildren.org states that untreated sleep apnea can contribute to heart, behavior, learning, and growth problems. (HealthyChildren.org) Cincinnati Children’s notes that pediatric OSA can cause behavioral problems during the day and may be misdiagnosed as ADHD in some children. (Cincinnati Children's)
The parent-friendly takeaway:
A child with sleep apnea may look tired — or they may look wired, irritable, impulsive, or unfocused.
Can Sleep Apnea Affect Growth?
Yes.
Untreated sleep apnea can affect growth in some children. Poor sleep, increased breathing work, and repeated oxygen or carbon dioxide changes can affect overall health.
HealthyChildren.org lists growth problems among possible health issues from untreated sleep apnea. (HealthyChildren.org) The NHLBI states that untreated sleep apnea in children can be associated with impaired growth, poor academic performance, high blood pressure, pulmonary hypertension, and learning or memory problems. (NHLBI, NIH)
The practical message:
If a child with craniosynostosis snores and is not gaining weight well, sleep breathing should be part of the discussion.
Can Sleep Apnea Affect Learning and Behavior?
Yes.
Sleep apnea fragments sleep. Children may not get enough deep, restorative sleep. They may also have oxygen or carbon dioxide changes during sleep.
This can affect:
- Attention
- Learning
- Memory
- Behavior
- Mood
- School performance
- Daytime energy
The American Thoracic Society says untreated sleep apnea can affect a child’s growth, quality of life, learning, behavior, and mood. (American Thoracic Society) The NHLBI also states that untreated sleep apnea in children can lead to learning and memory problems and can affect behavior and physical activity. (NHLBI, NIH)
The parent-friendly takeaway:
If a child with craniosynostosis is struggling with attention, behavior, fatigue, or school, sleep quality should be considered.
Can Sleep Apnea Affect Intracranial Pressure?
It may.
This is especially important in syndromic craniosynostosis, where some children already have higher pressure risk.
The European craniosynostosis guideline states that respiratory disorders can contribute to increased intracranial pressure. It explains that interrupted breathing can raise carbon dioxide, dilate brain blood vessels, increase blood flow to the brain, and potentially worsen pressure in children who may already be vulnerable. (myFace)
The practical message:
Sleep apnea is not only a sleep problem in craniosynostosis. In higher-risk children, it may also matter for pressure monitoring.
What Is a Sleep Study?
A sleep study is also called polysomnography, or PSG.
It is an overnight test that measures breathing and sleep.
A sleep study may record:
Brain waves
Sleep stages
Oxygen level
Carbon dioxide level
Heart rate
Breathing pattern
Airflow through the nose and mouth
Chest and belly movement
Snoring
Body position
Leg movement
Video recording in some sleep labs
The AAP calls overnight, attended, in-laboratory polysomnography the gold-standard test for diagnosing pediatric obstructive sleep apnea and notes that it can show both the presence and severity of sleep apnea. (American Academy of Pediatrics) The American Thoracic Society states that a polysomnogram records breathing, oxygen levels, heartbeat, and brain electrical activity during sleep. (American Thoracic Society)
The parent-friendly explanation:
A sleep study tells the team whether snoring is just noise or whether breathing is actually being blocked, oxygen is dropping, carbon dioxide is rising, or sleep is being disrupted.
Does Every Child With Craniosynostosis Need a Sleep Study?
Not always.
A child with isolated single-suture nonsyndromic craniosynostosis and no snoring, no airway symptoms, normal growth, and no sleep concerns may not need routine sleep testing.
But a sleep study may be discussed if:
- The child has syndromic craniosynostosis
- The child has multisuture craniosynostosis
- The child has midface hypoplasia
- Parents report snoring, pauses, gasping, restless sleep, or mouth breathing
- There are daytime behavior, learning, or growth concerns
- There are pressure concerns
- Surgery planning requires airway-risk assessment
- Tonsil and adenoid surgery is being considered in a higher-risk child
The European craniosynostosis guideline recommends annual type 1 polysomnography at a specialist center for children with syndromic craniosynostosis until at least age 6, and diagnostic sleep testing when doctor discussion points to respiratory-disorder symptoms. (myFace) The AAP recommends polysomnography, or referral to a sleep specialist or otolaryngologist, when a child snores regularly and has symptoms or signs of obstructive sleep apnea. (American Academy of Pediatrics)
The parent-friendly takeaway:
Not every child needs a sleep study, but snoring plus craniofacial risk factors is a good reason to ask.
Is a Home Sleep Test Enough?
Sometimes home testing may be used, but many children with craniofacial conditions need more detailed testing.
In-lab pediatric polysomnography is the most complete test because it can measure sleep stages, oxygen, carbon dioxide, breathing effort, airflow, heart rate, body movement, and video behavior.
The AAP notes that overnight, attended, in-laboratory polysomnography is the gold standard and that alternative tests may be used if PSG is unavailable, but alternative tests have weaker positive and negative predictive value; if an alternative test is negative but suspicion remains high, full PSG should be sought. (American Academy of Pediatrics)
The practical message:
Ask whether your child needs a full pediatric sleep lab study, especially if craniosynostosis is syndromic, multisuture, or airway anatomy is complex.
What Does AHI Mean?
Parents may hear the term AHI after a sleep study.
AHI stands for apnea-hypopnea index.
It estimates how many breathing pauses or partial breathing blockages happen per hour of sleep.
The sleep report may also include:
Oxygen saturation
Carbon dioxide levels
Obstructive apnea index
Central apnea index
Hypopneas
Arousal index
Sleep efficiency
REM sleep data
Body position
Severity category
The practical message:
Do not focus only on one number. Ask the sleep doctor to explain the whole report: obstruction, oxygen, carbon dioxide, sleep quality, central events, and what treatment is recommended.
Obstructive Apnea vs Central Apnea
Most sleep apnea discussed in craniosynostosis is obstructive sleep apnea, meaning airflow is blocked even though the child is trying to breathe.
Central sleep apnea is different. In central apnea, the brain does not send the breathing signal normally for brief periods.
The European craniosynostosis guideline states that central apnea occurs less commonly than obstructive apnea in craniosynostosis syndromes and decreases with age in the cited data. (myFace) Some complex children with syndromic craniosynostosis may also have Chiari malformation, hydrocephalus, or craniocervical issues that lead teams to consider central breathing patterns, but this is more specialized.
The parent-friendly takeaway:
Obstructive apnea means the airway is blocked. Central apnea means the breathing signal is interrupted. A sleep study can help tell the difference.
What If My Child Snores but the Tonsils Are Not Big?
This can happen.
In many children, enlarged tonsils and adenoids are the main cause of obstructive sleep apnea. But in craniosynostosis, obstruction may be related to midface hypoplasia, nasal airway narrowing, palate shape, jaw position, tongue base, or multiple airway levels.
The AAP notes that physical exam while awake may be normal and that tonsil size alone cannot predict whether an individual child has OSA, which is why objective testing may be needed. (American Academy of Pediatrics) The European craniosynostosis guideline states that in syndromic craniosynostosis, the upper airway may narrow at multiple levels and airway endoscopy may be used to identify the obstruction level when moderate or severe OSA is found. (myFace)
The practical message:
Small tonsils do not rule out sleep apnea, especially in craniofacial conditions.
What If the Tonsils and Adenoids Are Large?
Large tonsils or adenoids can contribute to OSA in any child, including children with craniosynostosis.
Adenotonsillectomy may help when enlarged tonsils and adenoids are part of the obstruction. But in syndromic craniosynostosis, tonsil and adenoid surgery may not fully solve the problem if the airway is also narrowed by midface or jaw anatomy.
The AAP recommends adenotonsillectomy as first-line treatment for children with confirmed OSA and adenotonsillar hypertrophy when there is no contraindication. (American Academy of Pediatrics) The European craniosynostosis guideline states that if enlarged tonsils or adenoids are present in syndromic craniosynostosis with OSA, removal may reduce the severity of respiratory disorders, but often does not completely solve the problem. (myFace)
The parent-friendly takeaway:
Tonsil and adenoid surgery may help some children, but craniofacial airway obstruction can be more complex.
What Is Airway Endoscopy?
Airway endoscopy is a procedure where specialists use a camera to look at the airway.
Parents may hear:
- Flexible laryngoscopy
- Nasopharyngoscopy
- Drug-induced sleep endoscopy
- Airway endoscopy
- Bronchoscopy
- ENT scope
- The goal is to find where the airway narrows or collapses.
The European craniosynostosis guideline recommends upper airway endoscopy if moderate or severe OSA is identified, to determine the levels of airway obstruction. (myFace)
The practical message:
A sleep study tells whether sleep apnea is present. Airway evaluation may help identify where the blockage is.
Treatment Options That May Be Discussed
Treatment depends on the cause and severity.
Options may include:
Observation for mild cases with close follow-up
Nasal steroid or allergy treatment in selected mild cases
Tonsillectomy and adenoidectomy if enlarged tonsils/adenoids are part of the obstruction
CPAP or BiPAP
Oxygen in selected situations
Weight management if relevant
Airway endoscopy
Orthodontic expansion in selected children
Craniofacial surgery to expand the airway
Midface advancement
Jaw advancement
Tracheostomy in severe or life-threatening cases
The AAP lists adenotonsillectomy for children with OSA and adenotonsillar hypertrophy, CPAP if surgery is not performed or OSA persists, weight loss when relevant, and intranasal corticosteroids as an option in selected mild cases. (American Academy of Pediatrics) Johns Hopkins lists pediatric OSA treatments including tonsil/adenoid surgery, CPAP, rapid maxillary expansion, intranasal steroids, and avoiding secondhand smoke and allergens when nasal congestion is present. (Johns Hopkins Medicine)
The patient-friendly takeaway:
Treatment is not one-size-fits-all. The best treatment depends on where the airway is blocked, how severe the sleep apnea is, and what else is happening medically.
What Is CPAP?
CPAP stands for continuous positive airway pressure.
A CPAP machine delivers air pressure through a mask during sleep to help keep the airway open.
CPAP may be used when:
- Surgery is not appropriate
- OSA persists after surgery
- The child is too young for certain craniofacial surgery
- The obstruction is not fixed by tonsil/adenoid removal
- The team needs respiratory support while waiting for growth or staged surgery
Johns Hopkins describes CPAP as a mask that delivers a steady stream of air to keep the airway open, though some children may have trouble getting used to the mask. (Johns Hopkins Medicine) The AAP recommends CPAP if adenotonsillectomy is not performed or if OSA persists after surgery. (American Academy of Pediatrics)
The parent-friendly takeaway:
CPAP does not change the skull or midface, but it can support breathing during sleep.
Can CPAP Affect Facial Growth?
Families may hear concerns about long-term mask pressure.
The NHLBI notes that long-term PAP treatment may affect a child’s facial growth. (NHLBI, NIH) This does not mean CPAP should be avoided when needed. It means children using CPAP long-term, especially those with craniofacial conditions, should be followed by a team that understands airway, facial growth, dental development, and mask fit.
The practical message:
If CPAP is recommended, ask how mask fit, facial growth, teeth, and skin will be monitored over time.
What Is Midface Advancement?
Midface advancement is surgery that moves the middle part of the face forward.
It may be discussed in syndromic craniosynostosis when midface hypoplasia contributes to:
- Obstructive sleep apnea
- Nasal airway obstruction
- Eye exposure
- Dental bite problems
- Chewing problems
- Facial imbalance
Johns Hopkins explains that midface advancement moves the bones of the nose, cheeks, upper jaw, and lower eye socket forward and can help protect the eyes, treat obstructive sleep apnea, and improve bite relationship. (Johns Hopkins Medicine) The European craniosynostosis guideline states that midface advancement may reduce moderate to severe respiratory disorders when underdevelopment of the face is a key factor, and it recommends considering Le Fort III or monobloc advancement in children with syndromic craniosynostosis and severe OSA requiring respiratory support. (myFace)
The parent-friendly takeaway:
Midface advancement is not only cosmetic. In some children, it can be part of airway, eye protection, and bite treatment.
Does Every Child With Midface Hypoplasia Need Midface Surgery?
No.
Timing and need depend on:
Severity of airway obstruction
Sleep study results
Eye exposure
Bite and dental development
Age
Growth
Syndrome
Prior surgeries
Need for CPAP or oxygen
Quality of life
Craniofacial team recommendation
Johns Hopkins notes that midface advancement is commonly done after age 7 to 8 in syndromic craniosynostosis, when delaying surgery may decrease the chance it needs to be repeated. (Johns Hopkins Medicine) But severe airway or eye problems may require earlier individualized treatment.
The practical message:
Midface surgery timing is individualized. Some children need early airway intervention; others are monitored until later childhood.
How Sleep Apnea Connects to Craniofacial Surgery Planning
Sleep apnea may affect surgical planning in several ways.
It may influence:
- Timing of surgery
- Need for ENT evaluation
- Need for sleep medicine
- Need for airway endoscopy
- Need for postoperative monitoring
- Whether tonsil/adenoid surgery is tried
- Whether CPAP is used before or after surgery
- Whether midface advancement is considered
- Whether ICU monitoring is needed after anesthesia
- Whether raised intracranial pressure workup is needed
The AAP notes that high-risk children, including those with craniofacial anomalies, need more careful postoperative monitoring after OSA-related surgery. (American Academy of Pediatrics) Children’s Health also notes that sleep studies are recommended before adenotonsillectomy in children at higher risk for surgical complications, including those with craniofacial abnormalities, because results can guide postoperative monitoring decisions. (Children's Health)
The parent-friendly takeaway:
A sleep study can help the team plan not only treatment, but also surgical safety and monitoring.
What If the Sleep Study Is Mild?
Mild OSA is not always treated the same way in every child.
Doctors may consider:
Symptoms
Oxygen levels
Carbon dioxide levels
Sleep quality
Growth
Behavior
School concerns
Pressure risk
Syndromic craniosynostosis
Other medical issues
Family burden
The European craniosynostosis guideline states that mild OSA is treated when there are other complaints too, while treatment choice should depend on OSA severity, age, related factors, feasibility, and other physical complaints. (myFace)
The practical message:
Mild on paper does not always mean unimportant. Ask how the sleep study matches your child’s symptoms and craniofacial risk.
What If the Sleep Study Is Moderate or Severe?
Moderate or severe OSA usually needs a clear treatment plan.
That may include:
- ENT evaluation
- Tonsil/adenoid surgery if appropriate
- CPAP or BiPAP
- Oxygen in selected cases
- Airway endoscopy
- Craniofacial surgery discussion
- Midface or jaw advancement in selected children
- Post-treatment repeat sleep study
The European craniosynostosis guideline states that moderate or severe OSA may be associated with increased intracranial pressure and disturbed sleep and is a reason for treatment; it also recommends upper airway endoscopy if moderate or severe OSA is found. (myFace) Cincinnati Children’s notes that a second PSG may be needed after OSA treatment to determine whether the treatment worked, because snoring can stop without curing pediatric OSA. (Cincinnati Children's)
The parent-friendly takeaway:
If OSA is moderate or severe, ask what treatment is planned, what airway level is causing obstruction, and how success will be measured.
Can Treating Sleep Apnea Improve Behavior or Learning?
It can help some children.
If poor sleep is contributing to attention, mood, behavior, or learning issues, treatment may improve daytime functioning. But craniosynostosis-related development and learning can have multiple causes, especially in syndromic conditions.
HealthyChildren.org states that untreated sleep apnea can lead to heart, behavior, learning, and growth problems. (HealthyChildren.org) The American Thoracic Society also states that sleep apnea can affect learning, behavior, mood, and quality of life. (American Thoracic Society)
The practical message:
Sleep treatment may not solve every developmental or learning concern, but untreated sleep apnea can make those concerns harder.
Should Parents Record Sleep Videos?
A short video can be useful.
Try to record:
Snoring
Pauses in breathing
Gasping or choking
Chest pulling in
Mouth breathing
Unusual sleep position
Restlessness
Neck extension
Color changes if they occur
The American Thoracic Society suggests that parents may want to record a child sleeping to show the healthcare provider. (American Thoracic Society)
The parent-friendly takeaway:
A sleep video is not a diagnosis, but it can help your doctor understand what you are seeing at home.
Red Flags: When Sleep Breathing Needs Urgent Attention
Seek urgent medical care or call emergency services if:
- Your child’s breathing stops for more than 20 seconds
- Your child turns blue, gray, or very pale
- Your child has severe trouble breathing
- Your child becomes limp or has a major change in muscle tone
- Your child is difficult to wake
- Your child has repeated breathing pauses with color change
- Your child has a fever with breathing distress
HealthyChildren.org advises calling emergency services if a child’s breath stops for more than 20 seconds, if skin color changes to pale, bluish, or grayish, or if there is a change in muscle tone or illness symptoms. (HealthyChildren.org)
Call your child’s healthcare team promptly, even if it is not emergency-level, if you notice:
Regular loud snoring
Pauses in breathing
Gasping or choking
Restless sleep
Heavy sweating during sleep
Sleeping upright or with neck extended
Mouth breathing
Morning headaches
Daytime sleepiness
Hyperactivity or behavior changes
Poor school performance
Poor growth
New or worsening symptoms in a child with craniosynostosis
Ask:
- Is my child’s snoring concerning?
- Should we see ENT?
- Should we see sleep medicine?
- Does my child have enlarged tonsils or adenoids?
- Does my child mouth-breathe during the day?
- Could allergies or nasal congestion be contributing?
- Should we record sleep videos?
- Should my child have a sleep study?
- Is my child at higher risk because of craniosynostosis?
- What symptoms would make this urgent?
Ask:
- Does my child’s type of craniosynostosis increase sleep apnea risk?
- Is this syndromic or multisuture craniosynostosis?
- Does my child have midface hypoplasia?
- Is the nasal airway narrow?
- Are the palate, jaw, or bite contributing to breathing?
- Should we see ENT, sleep medicine, or pulmonology?
- Should my child have a sleep study?
- How often should sleep symptoms be screened?
- Could sleep apnea worsen intracranial pressure risk?
- Could sleep apnea affect surgery timing?
- Could midface advancement be needed later?
- Does my child need airway endoscopy?
- Should we repeat a sleep study after treatment?
The most important question:
“How are we monitoring airway and sleep breathing in my child’s craniosynostosis plan?”
Ask:
- Does my child need full in-lab polysomnography?
- What does the sleep study measure?
- What is the AHI?
- Were events obstructive, central, or mixed?
- What were the oxygen levels?
- Was carbon dioxide elevated?
- Was sleep quality disrupted?
- Was REM sleep worse?
- Was position important?
- Is this mild, moderate, or severe?
- Does my child need ENT evaluation?
- Does my child need CPAP or BiPAP?
- Should we repeat the sleep study after treatment?
- How does craniosynostosis affect the interpretation?
Ask:
- Are the tonsils enlarged?
- Are the adenoids enlarged?
- Is nasal obstruction present?
- Is the septum or nasal airway narrow?
- Is the palate contributing?
- Is tongue-base obstruction suspected?
- Would tonsil/adenoid surgery help?
- Would surgery be enough, or is obstruction likely at multiple levels?
- Should airway endoscopy be done?
- Should a sleep study happen before surgery?
- Will my child need overnight monitoring after surgery because of craniofacial risk?
The practical takeaway:
ENT evaluation is not only about tonsils. In craniosynostosis, the whole airway may need to be considered.
Common Parent Fears
“Does snoring mean my child is in danger?”
Not always. Snoring is common, and OSA is less common. But regular snoring with pauses, gasping, restless sleep, mouth breathing, daytime behavior changes, or craniofacial risk factors should be evaluated. (American Academy of Pediatrics)
“My baby makes breathing pauses. Is that sleep apnea?”
Some infants have periodic breathing, which HealthyChildren.org describes as pauses followed by rapid catch-up breathing that babies usually outgrow by age 6 months. But pauses longer than 20 seconds, color change, illness symptoms, or changes in muscle tone require urgent evaluation. (HealthyChildren.org)
“Will tonsil surgery fix it?”
Maybe, but not always. Tonsil/adenoid removal can help when those tissues are part of the obstruction. In syndromic craniosynostosis, the European guideline notes that tonsil removal may reduce respiratory-disorder severity but often does not completely solve the problem. (myFace)
“Does my child need CPAP forever?”
Not necessarily. Some children use CPAP temporarily while waiting for growth, surgery, or another treatment. Others need longer-term support. Ask your sleep team how treatment success will be measured.
“Does midface advancement mean my child’s sleep apnea is severe?”
Not always, but midface advancement is usually discussed when midface hypoplasia causes meaningful functional problems, such as airway obstruction, OSA, eye exposure, or bite issues. Johns Hopkins notes that midface advancement can help treat obstructive sleep apnea and protect the eyes in children with syndromic craniosynostosis. (Johns Hopkins Medicine)
“Can sleep apnea affect pressure inside the skull?”
It may contribute, especially in higher-risk craniosynostosis. The European craniosynostosis guideline states that respiratory disorders can cause or worsen increased intracranial pressure in syndromic craniosynostosis. (myFace)
How to Explain Craniosynostosis Sleep Apnea to Family
Here is a simple explanation:
“Some children with craniosynostosis, especially syndromic types, have differences in the middle of the face, nose, jaw, palate, or throat that can make breathing during sleep harder. Snoring can be harmless, but regular snoring, pauses, gasping, restless sleep, mouth breathing, morning headaches, behavior changes, learning problems, or poor growth may mean the child needs a sleep study. A sleep study measures breathing, oxygen, carbon dioxide, heart rate, and sleep quality. Treatment depends on where the airway is blocked and how severe the sleep apnea is.”
This can help relatives understand why parents may be concerned about snoring even when the child seems fine during the day.
Craniosynostosis can be associated with sleep apnea, especially in syndromic or multisuture craniosynostosis.
The most common sleep apnea concern in craniosynostosis is obstructive sleep apnea.
Midface hypoplasia can narrow the airway and contribute to mouth breathing, snoring, and obstructive sleep apnea.
Large tonsils and adenoids can also contribute, but they may not be the only airway issue in syndromic craniosynostosis.
Not every child who snores has OSA.
Regular snoring, pauses, gasping, choking, restless sleep, mouth breathing, sweating, unusual sleep position, bedwetting, morning headaches, daytime sleepiness, hyperactivity, behavior problems, learning issues, or poor growth should be discussed with the care team.
A sleep study, or polysomnography, is the best test to diagnose pediatric OSA and determine severity.
A sleep study can measure oxygen, carbon dioxide, airflow, breathing effort, heart rate, brain activity, sleep stages, snoring, and body movement.
Sleep apnea can affect behavior, learning, growth, heart-lung health, and quality of life.
In syndromic craniosynostosis, sleep apnea may also matter for intracranial pressure risk.
Treatment may include observation, allergy treatment, tonsil/adenoid surgery, CPAP or BiPAP, oxygen in selected cases, airway endoscopy, orthodontic expansion, midface advancement, jaw surgery, or staged craniofacial care.
Midface advancement may help airway obstruction, sleep apnea, eye protection, and bite in selected children with syndromic craniosynostosis.
Emergency symptoms include breathing pauses longer than 20 seconds, blue/gray color, major tone change, severe breathing trouble, or difficulty waking.
The simplest parent-friendly summary is:
Snoring is common, but in craniosynostosis it deserves context. If a child has syndromic craniosynostosis, midface hypoplasia, airway concerns, pauses in breathing, gasping, restless sleep, daytime behavior changes, poor growth, or pressure concerns, parents should ask whether ENT, sleep medicine, and a sleep study are needed.
Frequently Asked Questions About Craniosynostosis and Sleep Apnea
Can craniosynostosis cause sleep apnea?
Yes, especially in syndromic craniosynostosis. Johns Hopkins states that children with syndromic craniosynostosis and midface hypoplasia may develop airway obstruction and obstructive sleep apnea. (Johns Hopkins Medicine)
What type of sleep apnea is most common in craniosynostosis?
The main concern is usually obstructive sleep apnea, where the airway is blocked during sleep. Central apnea can occur in selected complex cases but is less common in craniosynostosis syndrome data summarized by the European craniosynostosis guideline. (myFace)
Does every child with craniosynostosis need a sleep study?
No. Children with isolated single-suture craniosynostosis and no sleep symptoms may not need routine sleep testing. Sleep studies are more often discussed for syndromic or multisuture craniosynostosis, snoring, pauses, gasping, restless sleep, behavior changes, poor growth, or airway concerns.
What is midface hypoplasia?
Midface hypoplasia means the middle part of the face has not grown forward enough. CHOP explains that decreased midface growth can contribute to obstructive sleep apnea and airway concerns in syndromic craniosynostosis conditions such as Apert and Pfeiffer syndromes. (Children's Hospital of Philadelphia)
Is snoring always sleep apnea?
No. The AAP notes that snoring is common in children, while obstructive sleep apnea is less common. Snoring with symptoms or risk factors should prompt further evaluation. (American Academy of Pediatrics)
What symptoms suggest sleep apnea?
Symptoms may include regular snoring, gasping, choking, pauses in breathing, mouth breathing, restless sleep, sweating, unusual sleep positions, bedwetting, daytime sleepiness, hyperactivity, irritability, attention problems, morning headaches, poor school performance, or poor growth. (American Thoracic Society)
Can sleep apnea look like ADHD?
It can. Cincinnati Children’s states that pediatric OSA may cause behavior and concentration symptoms and can sometimes be misdiagnosed as ADHD or worsen ADHD symptoms. (Cincinnati Children's)
Can sleep apnea affect growth?
Yes. HealthyChildren.org lists growth problems among possible health issues from untreated sleep apnea, and the NHLBI notes that untreated pediatric sleep apnea can be associated with impaired growth and poor academic performance. (HealthyChildren.org)
Can sleep apnea affect intracranial pressure?
It may. The European craniosynostosis guideline states that respiratory disorders can contribute to increased intracranial pressure, especially in children with syndromic craniosynostosis who may already be vulnerable. (myFace)
What is a sleep study?
A sleep study, or polysomnography, is an overnight test that measures sleep and breathing. The AAP calls overnight attended laboratory polysomnography the gold standard for diagnosing pediatric obstructive sleep apnea. (American Academy of Pediatrics)
What does a sleep study measure?
A sleep study may measure brain activity, oxygen level, carbon dioxide level, airflow, breathing effort, heart rhythm, snoring, movement, and sleep position. Johns Hopkins and the American Thoracic Society describe these measurements as part of pediatric sleep apnea evaluation. (Johns Hopkins Medicine)
What is AHI?
AHI stands for apnea-hypopnea index. It estimates how many breathing pauses or partial obstructions occur per hour of sleep. The sleep doctor uses AHI together with oxygen, carbon dioxide, symptoms, sleep quality, and the child’s medical context.
Can a home sleep test diagnose sleep apnea?
Sometimes home or alternative testing may be used, but in-lab polysomnography is the most complete test for children, especially children with craniofacial complexity. The AAP states that alternative tests have weaker predictive value than polysomnography and that full PSG should be sought if suspicion remains high after a negative alternative test. (American Academy of Pediatrics)
Does tonsil and adenoid surgery fix sleep apnea in craniosynostosis?
It may help if enlarged tonsils or adenoids contribute. But in syndromic craniosynostosis, airway narrowing may occur at multiple levels, so tonsil/adenoid surgery may not fully solve OSA. The European craniosynostosis guideline notes that tonsil removal may reduce respiratory-disorder severity but often does not completely solve the problem. (myFace)
What is CPAP?
CPAP is continuous positive airway pressure. It uses a mask and air pressure to help keep the airway open during sleep. Johns Hopkins describes CPAP as a mask that delivers steady airflow to keep the airway open. (Johns Hopkins Medicine)
Can CPAP affect face growth?
Long-term PAP treatment may affect facial growth, according to the NHLBI. Children with craniofacial conditions using CPAP should have mask fit, facial growth, dental development, and airway progress monitored by the care team. (NHLBI, NIH)
What is airway endoscopy?
Airway endoscopy uses a camera to look at the airway and identify where obstruction occurs. The European craniosynostosis guideline recommends upper airway endoscopy when moderate or severe OSA is found, to determine obstruction levels. (myFace)
What is midface advancement?
Midface advancement is surgery that moves the middle part of the face forward. Johns Hopkins states that it can help protect the eyes, treat obstructive sleep apnea, and improve bite relationship in children with syndromic craniosynostosis and midface hypoplasia. (Johns Hopkins Medicine)
When should I call urgently about breathing during sleep?
Seek urgent care or call emergency services if your child’s breathing stops for more than 20 seconds, skin color turns pale, blue, or gray, there is a major change in muscle tone, or your child has severe breathing trouble or is difficult to wake. HealthyChildren.org gives these as emergency warning signs. (HealthyChildren.org)
What should I ask my child’s team?
Ask whether your child’s craniosynostosis type increases sleep apnea risk, whether midface hypoplasia is present, whether ENT or sleep medicine should evaluate your child, whether a sleep study is needed, and whether sleep apnea could affect intracranial pressure, surgery timing, or long-term craniofacial planning.
Suggested External Sources for the Published Blog
Use these at the bottom of the published article as a “Sources” section:
Johns Hopkins Medicine — Syndromic Craniosynostosis Best for: syndromic craniosynostosis, midface hypoplasia, airway obstruction, obstructive sleep apnea, sleep experts, polysomnography, midface advancement, eye protection, and staged craniofacial care. (Johns Hopkins Medicine)
European Patient Guideline on Treatment and Management of CraniosynostosisBest for: respiratory-disorder chapter, OSA symptoms, syndromic craniosynostosis risk, OSA and intracranial pressure relationship, annual polysomnography recommendation in syndromic craniosynostosis, airway endoscopy, tonsil/adenoid surgery, and midface advancement. (myFace)
American Academy of Pediatrics — Diagnosis and Management of Childhood Obstructive Sleep Apnea SyndromeBest for: snoring screening, when polysomnography is recommended, PSG as the gold standard, limits of history and physical exam, adenotonsillectomy, CPAP, and high-risk children including craniofacial anomalies. (American Academy of Pediatrics)
American Thoracic Society — Obstructive Sleep Apnea in Children Best for: parent-friendly OSA definition, symptoms, nighttime and daytime warning signs, untreated OSA complications, and polysomnography explanation. (American Thoracic Society)
HealthyChildren.org / American Academy of Pediatrics — Sleep Apnea in ChildrenBest for: parent-level sleep apnea symptoms, health consequences, periodic breathing in infants, and emergency warning signs such as breathing pauses longer than 20 seconds or color change. (HealthyChildren.org)
Seattle Children’s — Apert Syndrome / Saethre-Chotzen Syndrome Best for: midface hypoplasia, sleep apnea risk, airway monitoring during clinic visits, overnight sleep lab monitoring, raised-pressure questions, and multidisciplinary craniofacial care. (Seattle Children's)
Children’s Hospital of Philadelphia — Apert Syndrome and Pfeiffer SyndromeBest for: midface hypoplasia, central-face growth, obstructive sleep apnea, airway concerns, shallow eye sockets, prominent eyes, and syndromic craniosynostosis features. (Children's Hospital of Philadelphia)
Cincinnati Children’s — Pediatric Obstructive Sleep Apnea Best for: pediatric OSA symptoms, behavioral effects, PSG diagnosis, treatment options, and the reminder that stopping snoring does not always mean OSA is cured. (Cincinnati Children's)