Sleep Cycle Calculator
Wake up refreshed by timing your sleep cycles.
:
Go to bed at:
9:46 PM9.0 hours
11:16 PM7.5 hours
12:46 AM6.0 hours
2:16 AM4.5 hours
💡 5-6 cycles (7.5-9 hours) is optimal. Includes ~14 min to fall asleep.
Wake up refreshed by timing your sleep cycles.
Go to bed at:
💡 5-6 cycles (7.5-9 hours) is optimal. Includes ~14 min to fall asleep.