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What is the Sleep Calculator?
The Sleep Calculator helps you find the best time to wake up based on 90-minute sleep cycles.
How to Use This Calculator
1
Enter your bedtime.
2
Click 'Calculate' to see the best wake-up times.
Example Calculation
Bedtime = 11:00 PM
Wake up at 6:30 AM (5 cycles) or 8:00 AM (6 cycles).
Frequently Asked Questions
Pro Tips
- Consistency is key for good sleep hygiene.
- Most adults need 7-9 hours of sleep.