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Sleepopolis Calculators
Take the guesswork out of sleep with science-backed calculators.
Sleep Cycle Calculator
Find your ideal bedtime and wake time based on sleep cycles. Wake up refreshed and ready for the day.
Jet Lag Calculator
Adjust your sleep schedule before travel to avoid jet lag. Land feeling rested and alert.
Sleep Debt Calculator
Feeling tired or moody? Check your sleep debt, learn how to catch up, and prevent future fatigue.
Sleep Calculator for Kids
Enter your childโs age and wake time for expert-recommended bedtimes that support healthy sleep.