Tool Introduction
This calculator uses the National Sleep Foundation's age-based sleep guidelines. Pick the direction you need: tell us the desired wake-up time and we estimate a bedtime that gives your child enough sleep - or tell us the bedtime and we estimate a sensible wake-up time.
You will also see the recommended total sleep for the child's age, the healthy range, and how much of that typically comes from naps at each age.
All calculations happen locally in your browser - nothing is stored or sent anywhere.