If I sleep at 10:00 PM, when should I wake up?
Going to bed at 10:00 PM? Set your alarm for 5:45 AM (7.5 hours) or 4:15 AM (6 hours) to wake between sleep cycles.
Adjust for how you sleep
Most adults fall asleep in 10 to 20 minutes. If you wake up groggy even at the suggested times, try an 85 or 95 minute cycle for a week.
Alarm times after a 10:00 PM bedtime
| Wake up at | Sleep | How it'll feel |
|---|---|---|
| 2:45 AM | 3 cycles, 4.5 h | Running on fumes |
| 4:15 AM | 4 cycles, 6 h | Okay for one night |
| 5:45 AM | 5 cycles, 7.5 h | Fresh, recommended |
| 7:15 AM | 6 cycles, 9 h | Fully rested |
Assumes you fall asleep about 15 minutes after lights out and that each cycle lasts 90 minutes.
About a 10 PM bedtime
10 PM is the classic healthy bedtime, but surveys suggest only about one in eight urban Indians manage to sleep this early.
With this bedtime you can wake at 5:45 AM and still have a full 7.5 hours. Keep the bedtime steady on weekends too.
Sleeping at 10:00 PM: common questions
If I sleep at 10:00 PM, when should I wake up?
Set your alarm for 5:45 AM to get five full cycles (7.5 hours), or 7:15 AM for six cycles (9 hours). If you need to be up earlier, 4:15 AM gives four cycles (6 hours).
How many hours of sleep do I get if I sleep at 10:00 PM and wake at 5:45 AM?
About 7.5 hours of actual sleep, assuming you take 15 minutes to fall asleep. That's five complete cycles, the sweet spot for most adults.