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Kids' Bedtime Calculator

Pick your child's age and the time they need to wake up, and we'll suggest a bedtime that gives them the right amount of sleep for their age.

How much sleep children need by age

Children need much more sleep than adults, and it changes a lot as they grow. These are the widely used general guidelines (including naps for younger children):

  • Babies (4โ€“11 months): about 12โ€“15 hours
  • Toddlers (1โ€“2 years): about 11โ€“14 hours
  • Preschoolers (3โ€“5 years): about 10โ€“13 hours
  • School age (6โ€“13 years): about 9โ€“11 hours
  • Teenagers (14โ€“17 years): about 8โ€“10 hours

Tips for an easier bedtime

  • Keep a consistent routine โ€” same steps, same times, every night.
  • Dim lights and switch off screens about an hour before bed.
  • A calm wind-down (bath, story, cuddle) signals the body it's time to sleep.

Frequently asked questions

How many hours of sleep does a child need?

It depends on age โ€” from about 8โ€“10 hours for teens up to 11โ€“14 for toddlers. Pick the age group above for a tailored bedtime.

What time should my child go to bed?

Work backwards from wake-up time. A 7-year-old waking at 7am and needing ~10 hours should sleep around 9pm. This tool does it for you.

Is this medical advice?

No โ€” these are general guidelines. Every child is different. If you're worried about your child's sleep, please speak to a doctor.

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