Free Baby Nap & Wake Window Calculator
Find your baby's ideal nap schedule and wake windows by age. No app download needed — free online tool.
Based on pediatric sleep guidelines · Last updated October 2026 · Read our medical disclaimer
Wake Windows by Age Chart
| Age | Wake Window | Naps/Day | Total Sleep |
|---|---|---|---|
| Newborn (0–4 wks) | 45–60 min | 4–6 | 14–18 hrs |
| 1 month | 45–75 min | 4–5 | 14–17 hrs |
| 2 months | 1–1.5 hrs | 4–5 | 13–16 hrs |
| 3 months | 1.5–2 hrs | 3–4 | 13–15 hrs |
| 4 months | 1.5–2.5 hrs | 3–4 | 12–15 hrs |
| 5 months | 2–2.5 hrs | 3 | 12–15 hrs |
| 6 months | 2–3 hrs | 2–3 | 12–14 hrs |
| 7 months | 2.5–3 hrs | 2–3 | 12–14 hrs |
| 8 months | 2.5–3.5 hrs | 2 | 12–14 hrs |
| 9 months | 3–3.5 hrs | 2 | 12–14 hrs |
| 10 months | 3–4 hrs | 2 | 12–14 hrs |
| 11 months | 3–4 hrs | 1–2 | 12–14 hrs |
| 12 months | 3.5–5 hrs | 1–2 | 11–14 hrs |
| 15–18 months | 4–6 hrs | 1 | 11–14 hrs |
| 2 years | 5–6+ hrs | 0–1 | 11–13 hrs |
| 3 years | No nap needed | 0 | 10–13 hrs |
Frequently Asked Questions
What is a wake window for babies?
A wake window is the amount of time your baby can comfortably stay awake between sleep periods before becoming overtired. Wake windows increase as babies grow — newborns can only handle 45–60 minutes, while a 12-month-old may manage 4–5 hours.
How do I know if my baby is overtired?
Signs of an overtired baby include: rubbing eyes, yawning, fussiness, zoning out, pulling ears, and losing interest in play. An overtired baby is harder to settle and may sleep shorter stretches.
What if my baby won't nap on the schedule?
Watch your baby's tired signs rather than strictly following the clock. The schedule is a guide — babies vary! If your baby consistently refuses a nap, they may be ready to drop to fewer naps.
When do babies drop from 2 naps to 1?
Most babies transition from 2 naps to 1 between 14–18 months. Signs they're ready: fighting one nap, taking ages to fall asleep, or naps are cutting into night sleep.
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This is general guidance, not medical advice. Generated by babyaalam.com/tools/baby-nap-calculator/