Enter your baby’s age and when they last woke up — get the ideal next nap window instantly, and beat the overtired meltdown.
MamaBee predicts every nap automatically from your baby’s real sleep — no calculator needed.
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| Age | Wake window |
|---|---|
| 0–1 month | 35–60 minutes |
| 1–2 months | 45–90 minutes |
| 3–4 months | 75–120 minutes |
| 5–6 months | 2–2.5 hours |
| 7–9 months | 2.5–3.5 hours |
| 10–12 months | 3–4 hours |
Pick your baby’s age to load their typical wake window, enter the time they last woke up, and the calculator adds the wake window to that time to show when the next nap should start. Use it as a reliable starting point, then fine-tune to your own baby with their sleepy cues.
Want the full picture? Read our wake windows by age guide, the newborn sleep schedule, and how to build a calming baby bedtime routine.
A wake window is how long your baby can comfortably stay awake — feed and play included — before they need to sleep again. Timing sleep near the end of the window helps your baby fall asleep easily and avoid becoming overtired.
It gives you a reliable starting range based on your baby’s age. Every baby is a little different, so watch your baby’s sleepy cues (yawning, red eyebrows, staring) and adjust by 10–15 minutes as needed.
An overtired baby often fights sleep harder and wakes more at night. If you miss the window, extra soothing — motion, a dark room, contact — helps them settle.
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