Baby wake windows by age
How long might your baby stay awake between naps? Use these practical age-based ranges as a starting point.
Wake Window Calculator
Enter your baby's age to see a reference wake-window range.
Full wake window chart
A wake window is the time between sleeps. Put your baby down too early and they're not tired enough. Too late and they're overtired, which makes it harder for them to fall asleep. The sweet spot is somewhere in the ranges below.
| Age | Min | Typical | Max | Naps/day |
|---|---|---|---|---|
| 0-2 weeks | 35 min | 45 min | 1h 15m | 5-6 |
| 2-4 weeks | 50 min | 1h 15m | 1h 35m | 4-5 |
| 4-6 weeks | 1h 5m | 1h 30m | 1h 45m | 4-5 |
| 6-8 weeks | 1h 25m | 1h 40m | 2h | 4 |
| 8-10 weeks | 1h 35m | 1h 50m | 2h 5m | 4 |
| 10-12 weeks | 1h 50m | 2h 5m | 2h 20m | 4 |
| 3-4 months | 1h 30m | 2h 5m | 2h 20m | 4 |
| 4-5 months | 1h 40m | 2h 10m | 2h 30m | 3-4 |
| 5-6 months | 1h 55m | 2h 15m | 2h 45m | 3 |
| 6-7 months | 2h 5m | 2h 30m | 3h | 3 |
| 7-8 months | 2h 20m | 2h 45m | 3h 15m | 2-3 |
| 8-9 months | 2h 35m | 3h | 3h 30m | 2 |
| 9-10 months | 2h 50m | 3h 15m | 3h 45m | 2 |
| 10-12 months | 3h | 3h 30m | 4h | 2 |
| 12-14 months | 3h 15m | 3h 50m | 4h 30m | 2 |
| 14-18 months | 4h | 4h 40m | 5h 30m | 1-2 |
| 18-24 months | 5h | 5h 40m | 6h 10m | 1 |
| 24-30 months | 5h 30m | 6h | 6h 30m | 1 |
| 30-36 months | 6h | 6h 30m | 7h | 1 |
| 36+ months | 6h 30m | 6h 45m | 7h | 1 |
What wake windows are and why they matter
A wake window is just the time your baby spends awake between one sleep and the next. It sounds simple, but getting it right makes a real difference. Babies who go down at the right time fall asleep faster and sleep longer.
The wake-window ranges above are practical estimates compiled from pediatric sleep guides, not numbers measured in a single study. The sources below cover sleep duration, nap patterns and differences between babies; they do not establish exact wake windows.
These numbers are a starting point. Your baby will show you when they're tired: yawning, rubbing eyes, pulling ears, or that blank stare into nothing. If the signs show up before the window is "supposed" to end, put them down. The chart doesn't know your baby the way you do.
Sources
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