Choose a nap length and set an alert
This timer counts down the duration you enter. It does not measure sleep or know when you fall asleep. Include any extra settling time yourself.
For a wake time based on a planned start, use the nap calculator. Keep a separate reliable alarm if your device is likely to sleep or the browser will close.
How to use this tool
- Choose a preset or enter minutes and seconds.
- Turn on sound and test the alert.
- Start the countdown and leave the page open.
Example
If you plan a 20 minute nap and allow 5 minutes to settle, set a 25 minute countdown. The timer measures all 25 minutes from when you press Start.
Common questions
Does the timer detect when I fall asleep?
No. It starts counting immediately. Choose the duration based on your own plan.