# Sleep Calculator

Sleep Calculator - Hush Home 

# Calculate your ideal sleep time

When do you want to wake up?

Hour 1 2 3 4 5 6 7 8 9 10 11 12

Minute 00 15 30 45

AM PM

Calculate Bedtimes

For 6 sleep cycles (recommended):

For 5 sleep cycles:

Our Sleep Calculator is designed to help you find the perfect time to fall asleep by factoring in 90-minute sleep cycles, plus an additional 15 minutes—the average time it takes to drift off.

Each sleep cycle lasts about 90 minutes, and most adults benefit from completing 5 to 6 cycles each night.

Why 5 or 6? Because adults typically need between 7 to 9 hours of sleep. Six full cycles equal 9 hours of restorative rest, while five cycles provide 7.5 hours.

Waking up in the middle of a sleep cycle can leave you feeling groggy and irritable. In contrast, waking up at the end of a cycle helps you start the day feeling refreshed and energized!

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> Source: [Hush Home](https://www.hushhome.com/pages/sleep-calculator)