Free baby sleep tools
Instant, no-sign-up calculators built on the same sleep engine as the Nana app — so the numbers here always match what the app would tell you.
Wake window calculator
How long your baby can happily stay awake, by age — and when the next nap should land.
Sleep schedule generator
A realistic full day — naps and bedtime — from your baby’s age and this morning’s wake-up.
How much should my baby sleep?
Total sleep per 24 h for their age, split into night and naps.
Sleep by age, month by month
Wake windows, naps and a sample schedule for every month from newborn to 24 months.