Sleep Calculator
Calculate optimal sleep and wake times based on sleep cycles
Age-Based Recommendations
Weekly Sleep Schedule
Sleep Debt Calculator
Select your desired wake up time to see when you should go to bed
Select when you're going to bed to see optimal wake up times
You should go to bed at: You should wake up at:
Sleep Cycle Visualization
Each bar represents a 90-minute sleep cycle. More cycles = more deep sleep & REM.
Tip: A complete sleep cycle is 90 minutes. Waking up at the end of a cycle helps you feel more refreshed!
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