Six Medical Concerns That May Impact Your Child’s Sleep

Helping parents and children find deep, genuine sleep is something I care about enormously. I offer sleep consultations for exactly this reason, and I share plenty of sleep guidance here on the blog too. Most of the time, medical issues are not the sole cause of a child’s sleep difficulties. Far more often it comes down to habits, self-soothing, anxiety, or routine. That is exactly the territory my other sleep blogs cover in depth.

But before trying gentle sleep hygiene approaches on your own, it is worth checking with your GP or paediatrician first if any of the following apply. Your child has growth or developmental delays. They fall asleep easily but wake frequently through the night, in a way that does not seem connected to anxiety or self-soothing. Or you notice any of the symptoms below.

1. Obstructive sleep apnoea

This happens when the upper airway partially collapses during sleep. Your child has to briefly wake in order to breathe. It can affect both sleep quality and daytime concentration. Watch for snoring, gasping, or mouth breathing during sleep, and restless, broken sleep overall. Try not to panic, plenty of children snore without this being the cause. But it is always worth checking with your GP or paediatrician.

2. Asthma

Asthma is the most common long-term medical condition in children in the UK. It affects around one in 11 youngsters, so this is genuinely common territory. Watch for frequent waking due to coughing or wheezing, or a cold that never quite seems to clear.

3. Acid reflux and gastroesophageal reflux disease

Many babies experience some degree of reflux. You may notice irritability, frequent spitting up, or signs of tummy discomfort. Any of these can cause disrupted sleep. When reflux becomes more significant, classified as GERD, it can also involve feeding resistance, blood in vomit or stool, iron deficiency anaemia, or poor weight gain. This is worth raising with your GP or health visitor directly.

4. Food allergy or sensitivity

Allergies and sensitivities to things like cow’s milk, wheat, peanuts, or sesame can affect sleep in ways that are easy to miss. Watch for more frequent waking, shorter sleep cycles, and reduced total sleep overall. Many food sensitivities present mildly, a runny nose or sneezing at night. But some are serious and potentially life-threatening. If you suspect anaphylaxis risk, please seek medical advice directly rather than managing this alone.

5. Eczema

Eczema is genuinely hard for children to live with, and I have worked with many families affected by it. It can impact comfort and self-esteem. The itching and scratching that comes with a flare-up can also keep a child awake well into the night. The National Eczema Society and Allergy UK both offer good further support.

6. Restless leg syndrome

Also known as Willis-Ekbom disease, this is a neurological condition involving an uncomfortable urge to move the legs. Children often describe it simply as leg pain, sometimes mistaken for growing pains. Watch for fidgeting, stretching, or repeated repositioning at bedtime, alongside complaints of leg discomfort.

If it’s not medical

If none of the above sounds like your child, the cause is far more likely to be behavioural or emotional rather than medical. That is genuinely good news, because it is very changeable. Start with my blog Why Won’t My Child Sleep? Understanding Insomnia and What Actually Helps. Then read The Importance of Self-Soothing for Sleep and Practical Steps to Help Your Child Self-Soothe, which walk through exactly how to build this skill together.

If fear rather than habit is what’s keeping your child awake, Understanding the Link Between Sleep Problems and Nighttime Fears goes into this specifically. My free guide When Darkness Comes was written exactly for this. It helps your child feel calm and safe at night. If your child has ADHD, sleep often comes with its own particular challenges, which I cover in ADHD Sleep Support for Parents. And if the struggle is specifically about moving from co-sleeping into their own space, Helping Your Child Sleep in Their Own Bed walks through that transition gently.

A note on this blog

This blog is not a substitute for medical assessment. If you have any concerns about your child’s health, please do not hesitate to make an appointment with your GP or paediatrician.

Interested in working with me?

If you would like more tailored support for your child’s sleep, I offer sleep consultations alongside one to one therapy for children and young people and therapeutic parenting support for parents. Please do get in touch if you would like to find out more.

You can reach me via my contact page.

Free resources

Understanding Your Child’s Guard Dog Brain explains what is happening in your child’s nervous system when big feelings take over.

Holding in the Storm is about staying steady as a parent in the hard moments.

When Darkness Comes is my full guide dedicated to helping your child sleep, including support for anxiety and nighttime fears.

All free to download.