Sleep development 0–18 years

The information on this page about sleep development, from birth to 18 years old, is general advice that applies to all children. It also applies to children with epilepsy.

The skill of sleep

We develop sleep like we develop many other skills.

Sleep patterns and needs change greatly in the first months and years of life, and continue to develop right up to late adolescence. 

The information below shows you what to expect at different stages of development. 

It also offers some general advice on things you can do to encourage healthy sleep in your child.

If your child has a specific sleep problem, or you have a particular concern, talk to your child’s GP or health visitor for further advice. 

 

Sleep development

Night-time sleep/24 hours

  • 10 – 19 hours of sleep per 24 hours
  • Sleep periods separated by 1–2 hours awake, during the day and at nighttime

Naps/24 hours

  • 10–19 hours of sleep per 24 hours
  • Sleep periods separated by 1–2 hours awake, during the day and at nighttime

Milestones in sleep behaviour

  • Gradually starts to sleep when it’s dark

General advice

  • Place your baby to sleep on their back, on a firm surface – applies to babies up to the age of 18 months
  • Encourage natural exposure to light in the morning

Night-time sleep/24 hours   

  • 9 - 10 hours 
  • Wakes on average 2–6 times a night – may not always wake parents 

Naps/24 hours

  • 3–4 hours in total; initially in 4 periods, decreasing to 2 

Milestones in sleep behaviour

  • Develops ability to self-soothe, e.g. thumb-sucking 
  • Develops associations with time for sleep, e.g. a special stuffed toy 

General advice

  • Put your baby into cot, drowsy but awake 
  • Aim to wean off night feeds/bottles by 6 months 
  • Avoid associations with time for sleep such as rocking or verbal soothing 

Night-time sleep/24 hours

  • 9.5 – 10.5 hours 

Naps/24 hours

  • 2–3 hours in total; decreasing from 2 to 1 nap per day

Milestones in sleep behaviour

  • Increasing importance of ritual and routine

General advice

  • Put your baby into their cot, drowsy but awake
  • Aim to wean off night feeds/bottles by 6 months
  • Avoid associations with time for sleep such as rocking or verbal soothing

Night-time sleep/24 hours

  • 9 – 10 hours

Naps/24 hours

  • About 25% of 4-year-olds may still nap

Milestones in sleep behaviour

  • Starting school may call for a shift in sleep schedule

General advice

  • Reading as part of the bedtime routine may encourage better sleep
  • Avoid television at bedtime and do not have a TV set in the bedroom
  • Avoid drinks containing caffeine, e.g. cola, etc.

Night-time sleep/24 hours

  • 9 – 10 hours

Naps/24 hours

  • Daytime napping, sleepiness or dozing off are not normal in this age group – may suggest a problem with sleep quantity or quality

Milestones in sleep behaviour

  • Circadian preference, whether a person is a natural ‘owl’ (night person) or ‘lark’ (morning person), begins to emerge

General advice

  • Reading as part of the bedtime routine may encourage better sleep
  • Avoid television at bedtime and do not have a TV set in the bedroom
  • Avoid drinks containing caffeine, e.g. cola, etc.

Night-time sleep/24 hours

  • 9 – 9.5 hours, though most get 7–7.5 hours due to early school start times

Naps/24 hours

  • None

Milestones in sleep behaviour

  • The onset of puberty brings a natural sleep phase delay, i.e. tendency to stay up or wake up about 2 hours later than in middle childhood

General advice

  • Electronic devices, e.g. mobile phones, gaming systems, should not be used near bedtime
  • Encourage your child to manage their time well rather than ‘staying up’ to complete homework

This information is based on A Clinical Guide to Pediatric Sleep: Diagnosis and Management of Sleep Problems by Jodi A. Mindell and Judith A. Owens (Lippincott Williams & Wilkins 2010)

Last updated December 2023.

We’re currently reviewing this information. The next update will be 2026. If you would like to find out more about how we produce our information, or the sources of evidence we use, please contact us at healthinfo@youngepilepsy.org.uk

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