Health

Sleep Calculator

Best wake times from ~90-min cycles.

Calculated Output

Wake after 6 cycles (9 h) 7:14

5 cycles (7.5 h) 5:44

4 cycles (6 h) 4:14

Step-by-Step Breakdown

1. Values used:

2. Go to bed at (hour) = 22

3. Minutes past = 0

4. Wake after 6 cycles (9 h) = 7:14

5. 5 cycles (7.5 h) = 5:44

6. 4 cycles (6 h) = 4:14

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Waking at the end of a 90-min sleep cycle feels more refreshed. Add ~14 min to fall asleep.

Frequently Asked Questions

Which cycle?

If you go to bed now, pick the nearest wake time.

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