Determine the ideal time to go to sleep based on your wake-up schedule and sleep cycle needs. This calculation will help ensure you get a full, restful night's sleep.
Service | Free | Paid |
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Sleep Calculator is a free online service that helps you calculate the perfect bedtime or wake-up time to wake up feeling refreshed and energized. Simply input your desired wake-up time and the calculator will provide you with the ideal bedtime or the best times to wake up based on 90-minute sleep cycles.
