Best Time For Bed

Health

Find your perfect bedtime based on 90-minute sleep cycles

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About

Do you ever get a full night of rest but still wake up feeling tired? The issue is not the duration of your sleep, but rather the timing of your alarm. Best Time For Bed is a free tool that calculates your ideal sleep or wake times by aligning with your body's natural 90 minute sleep cycles. Key features include sleep advice tailored for different age groups, such as teens, adults, and seniors. It works in both directions, allowing you to calculate either your optimal bedtime or your wake up time. The service also provides a nap calculator, a sleep debt tracker, and guides for better sleep habits. It is completely free to use in your browser.

Launched

May 29, 2026Week 12

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