I'm Going to Sleep Now
Find the best times to wake up starting from right now
Current time
11:10
Sunday, January 25
Going to sleep now?
We add 14 minutes to account for the time it takes to fall asleep. Set your alarm to one of the recommended times to wake up feeling refreshed.
How to Use Sleep Calculator
- 1 Click "Calculate" to use the current time
- 2 See recommended wake-up times instantly
- 3 Set your alarm for one of the suggested times
- 4 Get the most refreshing sleep possible
What You Get
Instantly calculates optimal wake-up times from the current moment. Perfect for when you are about to sleep and need quick alarm recommendations.
Input: Current time: 23:00
Output: Wake at 5:00, 6:30, or 8:00
Input: Current time: 01:15
Output: Wake at 7:15, 8:45, or 10:15
I am going to sleep now - when should I set my alarm?
Click Calculate to use current time. Set your alarm for 4.5 hours (3 cycles), 6 hours (4 cycles), 7.5 hours (5 cycles), or 9 hours (6 cycles) from now.
Does the sleep now calculator update automatically?
It uses your current time when you click Calculate. Refresh or click again for updated recommendations if time has passed.
What if I take longer than 14 minutes to fall asleep?
Mentally add your extra time to the suggested wake times. If you take 30 minutes, add 15 minutes to our recommendations.
Can I use this calculator for naps?
For naps, aim for 20 minutes (light sleep only) or 90 minutes (one full cycle). Longer naps may cause grogginess.
Is it better to sleep less and complete full cycles?
Yes. Waking after 6 hours (4 complete cycles) often feels better than 7 hours mid-cycle. Complete cycles matter more than total hours.
How do I use sleep cycles for better morning energy?
Pick a wake time from the suggestions that fits your schedule. These times align with cycle endings when you naturally feel alert.
All calculations happen locally in your browser. No data is sent to any server.