Sleep Calculator

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You should wake up at:

How It Works

⏰ How does the 90-minute sleep cycle work?

A full sleep cycle lasts about 90 minutes, moving through light sleep, deep sleep, and REM. Waking at the end of a cycle helps you wake up refreshed.

😴 Why add 14 minutes delay?

The average person takes 10 to 20 minutes (average 14 mins) to fall asleep.

🔋 How many sleep cycles do I need?

Most adults feel best with 5 to 6 cycles (7.5 to 9 hours of total sleep per night).