Sleep Calculator
Find Your Perfect Bedtime & Wake Time
This sleep calculator works best with JavaScript enabled. Here are some quick sleep time recommendations:
Quick Sleep Time Guide
If you need to wake up at 7:00 AM, try going to bed at:
- 🌙 9:45 PM (6 sleep cycles - 9 hours)
- 🌙 11:15 PM (5 sleep cycles - 7.5 hours)
- 🌙 12:45 AM (4 sleep cycles - 6 hours)
Enable JavaScript to use our interactive calculator and get personalized sleep recommendations based on 90-minute sleep cycles.