Sleep Time Calculator
Use 90-minute sleep cycles to find better wake-up and bedtime windows.
Age range
Child (6-13) → 9-11h
Teen (14-17) → 8-10h
Adult (18-64) → 7-9h
Senior (65+) → 7-8h
Wake up time
Bedtime
Time to fall asleep
Calculate bedtime
Calculate wake-up time
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Results
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