Sleep · Sleep cycle calculator
Wake up between
cycles.
The best times to fall asleep or wake up, timed to 90-minute sleep cycles.
Most adults need 7–9 hours, so 5 or 6 cycles. Keeping the same wake-up time every day, weekends included, matters more than any single night.
A general estimate for healthy adults, not a diagnosis. If you are pregnant, under 18 or managing a health condition, check with a doctor first. Nothing you enter is sent to Gewo.
Take it further
Numbers are a start.
A plan is better.
If you are tired however long you sleep, a sleep or lifestyle coach can help find out why.
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