Before calculating
- Use the result as a reference, not an order.
- Watch sleepy cues before waiting until the end of the range.
- For newborns, safe sleep and feeding come before any routine.
Next nap may land between
07:45 AM - 08:15 AM
Use this as a reference, not a rule. Sleep cues and pediatric guidance come before the calculator.
How the calculator works
The tool adds an age-based wake window range to the time your baby woke up. The range changes by age, but it remains an estimate.
When to adjust the result
Move earlier when sleepy cues show up early. Wait a little longer if your baby woke well, fed well, and is still calmly engaged.
Keep reading
App
Baby sleep tracker app
Track sleep, feeds, and diapers after estimating the wake window.
Age schedule
Newborn sleep
30 to 60 min awake, many short, variable naps.
Age schedule
1 month
45 to 75 min awake, 4 to 6+ naps, still irregular.
Age schedule
2 months
60 to 90 min awake, 4 to 5 naps with variable length.
Age schedule
3 months
75 to 110 min awake, 4 to 5 naps, with a rhythm starting to repeat.
Safety note
This content is educational and does not replace medical care. Contact your pediatrician for fever, breathing trouble, dehydration signs, weight concerns, unusual sleepiness, or any health concern.
FAQ
Does the calculator work for newborns?
It works as a light reference. Newborns vary a lot, so your baby’s cues and pediatric guidance come first.
What if my baby does not sleep during the estimated window?
Use the result as a clue. Room setup, hunger, diaper, discomfort, and accumulated tiredness also matter.