Sleep Cycle Calculator

Optimize your sleep by aligning with natural sleep cycles

Calculate Wake-up Times

If you fall asleep now (assuming ~15 minutes to fall asleep), here are optimal times to wake up after complete sleep cycles:

Ideal Wake-up Times (6 cycles)

Alternative Wake-up Times

When do you want to wake up?

Ideal Bedtimes (6 cycles)

Alternative Bedtimes

A complete sleep cycle lasts about 90 minutes, and we typically go through 4-6 cycles each night.

Waking up at the end of a sleep cycle (during light sleep) helps you feel more refreshed compared to waking up during deep sleep.

The calculator adds 14 minutes to account for the average time it takes to fall asleep.

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