Sleep Apnoea in Children: Symptoms and Treatment

Sleep apnoea in children is different from the adult version in several important ways, but it can still affect a child's sleep, mood and growth. This guide explains what to look for and what help is available.

What is sleep apnoea in children?

Sleep apnoea means breathing repeatedly stops or becomes very shallow during sleep. In children, the most common type is obstructive sleep apnoea, where the airway at the back of the throat becomes partly or fully blocked, usually because of enlarged tonsils and adenoids. This is quite different from ordinary snoring, which is noisy breathing without the pauses or blockages. You can read more about the difference in our guide to snoring in children, causes and when to worry.

Unlike adults, children with sleep apnoea are often not overweight. It's frequently linked to the size of their tonsils and adenoids relative to their airway, which tends to improve as the face and jaw grow. For a wider look at how sleep apnoea works generally, our page on what sleep apnoea is, its symptoms and treatment is a useful companion read.

Symptoms to watch for

During sleep

• Loud, regular snoring, often most nights rather than occasionally
• Pauses in breathing, followed by a snort, gasp or choking sound
• Restless sleep, unusual sleeping positions, or a head tipped right back
• Heavy or noisy breathing through the mouth
• Sweating heavily during the night

During the day

• Difficulty waking up, or waking up grumpy
• Tiredness, or in younger children, hyperactivity and poor concentration rather than obvious sleepiness
• Mouth breathing and a dry mouth even when awake
• Slower than expected growth, or difficulties with weight gain
• Behavioural changes, such as irritability or trouble at school

Not every child shows every sign, and a single bad night rarely means much. It's the pattern over time that matters.

What causes it

The most common cause by far is enlarged tonsils and adenoids narrowing the airway. Other contributing factors can include:

• A family history of sleep apnoea or airway narrowing
• Conditions affecting muscle tone or facial structure, such as Down syndrome
• Obesity, though this is a less common cause in children than in adults
• Allergies or chronic nasal congestion that make nose breathing harder

Many children snore occasionally without any of this being a concern. The point at which it's worth taking further is covered well in our guide on when to see a GP about snoring and the red-flag symptoms.

When to see a GP

It's sensible to book a GP appointment if your child has any of the following, particularly if they happen regularly:

• Loud snoring most nights, especially with gasping, choking or pauses in breathing
• Daytime exhaustion, unusual sleepiness, or a noticeable change in behaviour or concentration
• Breathing that appears to stop, even briefly, during sleep
• Slow growth or weight gain alongside disturbed sleep

Try, if you can, to note down what you observe, how often it happens, roughly how long any pauses last, and how your child seems during the day. This is genuinely helpful information for a GP and can speed up the process of working out what's going on. Our sleep apnoea hub has further background if you want to read more widely before your appointment.

Diagnosis

Your GP will usually start by asking about your child's sleep, general health and growth, and may examine their throat, tonsils and nose. If sleep apnoea seems likely, they may refer your child to a specialist, such as an ENT (ear, nose and throat) consultant or a paediatric sleep service.

Further assessment might include a sleep study, which monitors breathing, oxygen levels and other signs overnight, either at home or in a hospital setting. This isn't always needed for every child, particularly where the history and examination point clearly towards enlarged tonsils and adenoids, but it can be useful in less straightforward cases.

Treatment options

Watching and waiting

For mild cases, especially in younger children, a period of monitoring may be recommended, since airways often widen as children grow and tonsils can shrink naturally with age.

Surgery

Removal of the tonsils and adenoids (adenotonsillectomy) is the most common and often most effective treatment where enlarged tissue is the clear cause. Many children see a substantial improvement in their sleep and daytime behaviour afterwards, though as with any operation, it's worth discussing the risks and recovery with the surgical team.

Other approaches

• Treating allergies or nasal congestion that make breathing harder
• Weight management support, where excess weight is a contributing factor
• Continuous positive airway pressure (CPAP), a mask-based treatment sometimes used for children where surgery isn't suitable or hasn't fully resolved things
• Dental or orthodontic input in certain cases involving jaw or airway structure

Treatment is always tailored to the individual child, their age, and what's causing the problem, so it's worth discussing the options fully with your GP or specialist rather than assuming one path fits all.

A practical close

Most children who snore are perfectly fine, and sleep apnoea, while it needs proper attention, is generally very treatable once identified. Trust your instincts as a parent. If something about your child's breathing or daytime wellbeing doesn't sit right, it's always reasonable to ask a GP to take a look.