Stop guessing. Start resting. The only alarm clock that waits until you're asleep to start the timer.
Research from NASA and sleep scientists reveals that 10-30 minute naps provide maximum benefit without grogginess.
NASA found pilots who took 26-minute naps showed 54% improved alertness and 34% better performance. (link to study)
Research shows 10-20 minute naps avoid "sleep inertia" (that groggy feeling) while maximizing cognitive benefits. (link to study)
Benefits of a power nap last up to 3 hours: improved memory, reaction time, and mood. (link to study)
Get exactly 20 minutes of sleep, not 20 minutes of "trying to sleep".
Recharge efficiently during study breaks without the fear of accidental oversleeping.
Optimize those short, critical resting periods between shifts.
Catch up on sleep after a busy night. Every minute of rest counts.
Naptime utilizes high-sensitivity accelerometer data to monitor your body movement. It distinguishes between "settling in" movements and the stillness of true sleep.
You asked for 20 minutes? You get 20 minutes. The countdown only starts once we confirm you're asleep, ensuring you get the full restorative benefit.
Track your sleep latency, efficiency, and post-nap happiness. Find your "sweet spot" duration with data-driven insights.
We believe your sleep data belongs to you. Period.
All your nap data stays on your phone. We never send it to our servers or anyone else.
Start napping immediately. No sign-up, no email, no tracking.
Pay once, own forever. No subscriptions, no recurring fees, no surprises.
Choose duration
Face-down next to pillow
We detect movement
Refreshed
Set a deadline for every nap session. No matter what happens, the alarm will ring by your deadline—guaranteed. You get the rest you need without the risk of oversleeping.