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Sleep by age
The American Academy of Sleep Medicine consensus ranges for sleep by age, plus a bedtime window computed from your child's wake time.
Growth charts and sleep ranges describe populations, not your child. The measurement that matters is the child's own growth curve, read by the child-health professional who knows the child. Anything worrying — stalled weight, breathing pauses in sleep, a measurement that jumped curve — is a reason to contact them, not to consult this page.
| Age | Recommended (AASM) | Note |
|---|---|---|
| 0-3 months | 14-17 hours | Includes naps; no fixed rhythm yet. |
| 4-11 months | 12-15 hours | Two to three naps. |
| 1-2 years | 11-14 hours | One to two naps. |
| 3-5 years | 10-13 hours | Naps usually drop out. |
| 6-12 years | 9-12 hours | |
| 13-18 years | 8-10 hours |
Bedtime from wake time
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Sources: WHO Child Growth Standards · AASM consensus recommendations for sleep · checked 2026-09-03
Frequently asked questions
How many hours should my child sleep?
The AASM consensus: 12-15 hours at 4-11 months, 11-14 at 1-2 years, 10-13 at 3-5, 9-12 at 6-12 and 8-10 at 13-18 — naps included. The table below carries every band.
Is the range a rule?
No. It is the range that the evidence associates with the best outcomes in children. A child consistently outside it, who is tired, irritable or struggling, is a conversation for a clinician — a child outside it and thriving is a different story.
How do I compute a bedtime?
Work backwards from the wake time: a child who must be up at 7:00 and needs 10-13 hours should be asleep between 21:00 and 23:00. The box below does the arithmetic for any age and wake time.
Log the nights, see the weeks
TempoLife tracks sleep alongside the day's plan, so a rough week shows up before it becomes a rough month.