About Wake Window
Wake Window answers one question for tired parents: when should my baby nap next?
This website is the free version of that answer. Pick an age, enter when your baby woke, and you get the next nap window. No account, no email, nothing to download.
The Wake Window iPhone app (listed on the App Store as Newborn Sleep: Wake Window) does the same thing all day long. Tap “Baby Woke Up”, and it shows the next nap window, keeps it on your Lock Screen, and can remind you shortly before it opens. It keeps a simple history of naps and lets you set a custom wake window when the age range doesn’t fit your baby.
Where the numbers come from
The site and the app use the same age-based ranges, drawn from publicly available guidance from sources including Cleveland Clinic and the Sleep Foundation. They’re listed on the wake windows by age page. They are typical starting points, not medical advice, and they’re not a substitute for your pediatrician.
Privacy
The app stores everything on your iPhone and collects no data. The calculator on this site runs in your browser. Details are in the privacy policy.
