What time to go to bed to wake up at 8 AM
Based on 90-minute sleep cycles, including 15 minutes to fall asleep:
| Cycles | Sleep | Bedtime |
|---|---|---|
| 6 cycles | 9 hours | 10:45 PM |
| 5 cycles | 7.5 hours | 12:15 AM |
| 4 cycles | 6 hours | 1:45 AM |
For any other time, use the sleep calculator.
Frequently Asked Questions
What time should I go to bed to wake up at 8 AM?
Using 90-minute sleep cycles plus 15 minutes to fall asleep: 10:45 PM for 6 cycles, 12:15 AM for 5 cycles, 1:45 AM for 4 cycles.
Will the 8 AM alarm ring if the tab is closed?
No, it rings while the tab is open. You can leave it in the background and use "Keep screen awake" to stop the device from sleeping.
Can I change the alarm time?
Yes. 8 AM is only the preset; use the hour and minute pickers to choose any time.