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Bedtime Calculator for Kids

Find a healthy bedtime window based on your child’s age and wake-up time.

Bedtime calculator

Pick your child's age and wake-up time to see a healthy bedtime window.

Aim for bed between

7:00 PM – 10:00 PM

Based on 9–12 hours of sleep for 6–12 years (school age).

General guidance from pediatric sleep recommendations; every child is different — check with your pediatrician.

How to use this tool

Pediatric sleep guidelines suggest different total sleep amounts by age. This calculator subtracts those hours from your child's wake-up time to show a bedtime window — not a single minute, because wind-down routines matter too.

Read our full guide: What Time Should My Child Go to Bed? A Bedtime-by-Age Guide

Turn routines into daily wins with Good habits.

Related reading

Frequently asked questions

How much sleep do school-age kids need?
Most school-age children need 9–12 hours per night. Teens typically need 8–10 hours.
Should bedtime be the same on weekends?
A little flexibility is fine, but big swings can make Monday mornings harder. Many families stay within an hour of weekday bedtimes.