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Sleep Calculator

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How much sleep does a young adult need?

Young adults (18–25 years) are generally recommended to get 79 hours of sleep per night, per National Sleep Foundation guidelines.

Young adults can typically manage on the lower end of the range, but consistency still matters more than most people expect for daytime alertness.

Example: waking up at 7:00 AM

8:15 PM
7 cycles · 10h 30m sleep
9:45 PM
6 cycles · 9h 0m sleep
Best
11:15 PM
5 cycles · 7h 30m sleep
Best
12:45 AM
4 cycles · 6h 0m sleep
2:15 AM
3 cycles · 4h 30m sleep

Example: going to bed at 10:30 PM

3:15 AM
3 cycles · 4h 30m sleep
4:45 AM
4 cycles · 6h 0m sleep
6:15 AM
5 cycles · 7h 30m sleep
Best
7:45 AM
6 cycles · 9h 0m sleep
Best
9:15 AM
7 cycles · 10h 30m sleep

Want a schedule for a different time? Use the full sleep calculator with the young adult age group pre-selected.