Wake windows by age
Cleveland Clinic lists typical wake windows, the time a baby stays awake between sleeps, as about 30 to 60 minutes from birth, growing to about 3 to 6 hours by 10 to 12 months. These ranges cite no studies, and we found no AAP or CDC page that sets wake-window numbers. Treat them as a guide, and watch your baby.
Checked October 29, 2026.
Typical wake windows, birth to 12 months
| Baby's age | Typical wake window |
|---|---|
| Birth to 1 month | 30 minutes to 1 hour |
| 1 to 3 months | 1 to 2 hours |
| 3 to 4 months | 1 hour 15 minutes to 2 hours 30 minutes |
| 5 to 7 months | 2 to 4 hours |
| 7 to 10 months | 2 hours 30 minutes to 4 hours 30 minutes |
| 10 to 12 months | 3 to 6 hours |
The source's table has no row for 4 to 5 months, so we have not made one up.
What is a wake window?
It is the stretch of time a baby is awake between one sleep and the next. Cleveland Clinic says wake windows generally get longer as babies get older.
How strong is the evidence?
Thin. Cleveland Clinic calls these accepted ranges and cites no studies; the page quotes one pediatrician. It says babies are individuals and that wake windows can change from day to day or nap to nap.
The AAP's HealthyChildren.org does not give wake-window numbers on the pages we read. What it does say is that babies do not have regular sleep cycles until about 4 months, and that, from about 4 months, babies can be put to bed drowsy rather than already asleep.
If a range doesn't fit your baby, that is not a problem to fix. The ranges are one way families and clinicians describe what is typical.
Try it
The wake window planner on this site shows the range of times the next sleep might be due, from your baby's age and when they last woke. It runs in your browser and sends nothing to us.
Call your pediatrician if…
Your pediatrician knows your child. Call them if you have a worry about how or how much your child sleeps. These pages from the AAP and the NHS can also help you decide what to ask:
Peabody editors write these pages from the sources below. We are not doctors, and this is not medical advice for your child.
Sources
- Cleveland Clinic: Wake windows by age (published April 2024; the ranges cite no studies) (checked October 29, 2026)
- AAP, HealthyChildren.org: Getting Your Baby to Sleep (checked October 29, 2026)
- American Academy of Sleep Medicine, Recommended Amount of Sleep for Pediatric Populations (consensus statement, J Clin Sleep Med 2016; endorsed by the AAP) (checked October 29, 2026)