Sleep Calculator for Kids: Bedtime by Age
Free kids sleep calculator: find the right bedtime, total sleep hours and nap schedule for babies, toddlers, school-age kids and teens, based on AASM guidelines.
Sleep Calculator
Find recommended sleep durations and schedules for your child's age
Bedtime by age chart
Recommended sleep per 24 hours (including naps) from the American Academy of Sleep Medicine, with typical bedtimes for a 6:30-7:30 AM wake-up.
| Age | Total sleep | Naps | Typical bedtime |
|---|---|---|---|
| Newborn (0-3 months) | 14-17 hrs | 4-5+ naps | 9:00-11:00 PM (no fixed bedtime yet) |
| Infant (4-11 months) | 12-15 hrs | 2-3 naps | 6:30-8:00 PM |
| Toddler (1-2 years) | 11-14 hrs | 1-2 naps | 6:30-8:00 PM |
| Preschool (3-5 years) | 10-13 hrs | 0-1 nap | 6:30-8:00 PM |
| School age (6-12 years) | 9-12 hrs | None | 7:00-8:30 PM |
| Teen (13-18 years) | 8-10 hrs | None | 8:30-10:30 PM |
Kids sleep questions
How much sleep does my baby need?
Newborns need 14-17 hours, infants 12-15 hours, toddlers 11-14 hours, preschoolers 10-13 hours, and school-age children 9-11 hours per day including naps.
What's the ideal bedtime for a 3 year old?
Most 3 year olds need 10-13 hours of sleep. With a 7am wake time, a bedtime between 6:30-8:00 PM is ideal depending on whether they still nap.
When should my child stop napping?
Most children stop napping between ages 3-5. Signs they're ready include difficulty falling asleep at bedtime, taking a long time to fall asleep for naps, or sleeping well at night without a nap.
What time should a school-age child go to bed?
Children aged 6-12 need 9-12 hours of sleep. For a 7am wake-up, a bedtime between 7:00 and 8:30 PM usually works well.
How much sleep does a teenager need?
Teens aged 13-18 need 8-10 hours per night. A 6:30am wake-up means aiming for lights-out between 8:30 and 10:30 PM.
This tool offers general guidance and is not medical advice. Talk to your pediatrician about ongoing sleep concerns.