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Sleep by Age · School-age child

How much sleep at age 12?

The National Sleep Foundation recommends 911 hours for school-age childs. 712 hours may be appropriate depending on individual variation.

Recommended
911h
May be OK
712h
Typical cycles
6
Age group
School-age child
Developmental Notes

School-age children (ages 6–13) need 9–11 hours of sleep, a need most modern schedules systematically fail to meet. Sleep at this age directly gates academic performance, emotional regulation, and growth. Screens and early school start times are the two most documented disruptors.

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Frequently Asked

Questions & answers.

How many hours of sleep does a 12-year-old need?

The National Sleep Foundation recommends 9–11 hours per night for school-age childs. 7–12 hours may be appropriate for individual variation.

Is 9 hours enough sleep at age 12?

9 hours is the floor of the recommended range — sufficient for most school-age childs on a consistent schedule, but below the middle of the NSF range. If you feel tired at this duration, try adding 30 minutes for a week.

What is the best bedtime for a 12-year-old?

Bedtime depends on wake time, not age alone. Most school-age childs need 6 complete sleep cycles (~540 minutes, though personal cycle length varies from 75–115 min). Count backwards from the intended wake time to set a cycle-aligned bedtime.

Why do school-age childs need 9–11 hours of sleep?

School-age children (ages 6–13) need 9–11 hours of sleep, a need most modern schedules systematically fail to meet. Sleep at this age directly gates academic performance, emotional regulation, and growth. Screens and early school start times are the two most documented disruptors.

Does a 12-year-old need naps?

Generally not on school days, but a 20-minute nap after school is beneficial for some children.

Nearby ages

Based on NSF (Hirshkowitz et al., 2015) sleep duration recommendations