Stop guessing. Start resting. The only alarm clock that waits until you're asleep to start the timer.
Available for Android only at this stage
Use Naptime for short daytime sessions and full overnight sleep. See how long it takes to fall asleep, how efficient each session was, and whether your naps are helping or hurting your nights.
Label each session with the details that might matter, then spot what helps you fall asleep faster, wake up better, or protect your night sleep.
See whether caffeine timing makes it harder to start a nap.
Compare sleep quality across your real room conditions.
Find recovery patterns that show up after repeated sessions.
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.
Set a latest wake-up time for any nap. Even if you never fall asleep, the alarm fires by your cutoff.
Track overnight sessions alongside naps so your rest history reflects the full rhythm of your day.
Label sessions with custom tags and compare how habits, environments, and routines affect your sleep.
See sleep latency, efficiency, mood, tags, and night sleep trends in one local history. Learn what improves your rest and what quietly ruins it.
Use a clean alarm view when you just need a simple wake-up, wrapped in a black interface that keeps the room calm.
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% fewer mistakes. (link to study)
Regular napping promotes heart regulation, with research showing 37% lower coronary mortality in frequent nappers. (link to study)
A 2023 randomized controlled trial found that nappers woke up with significant improvements to mood, alertness, and memory. (link to study)
Research from 2008 shows that power naps are more effective than caffeine at improving verbal memory and motor skills. (link to study)
A 2026 feature highlights that the 20-minute "sweet spot" is a biological superpower, slowing brain aging and lowering heart risk. (link to article)
Research shows 10-20 minute naps avoid "sleep inertia" (that groggy feeling) while maximizing cognitive benefits. (link to study)
Precisely doses a power nap. Detects when you fall asleep, starts the timer at the right moment, and wakes you before deep sleep sets in — so you get the full benefit every time.
Brings personalized insights to help you sleep better over time. Spot patterns across nights and naps, and understand the habits that quietly shape your rest.
Schedule an alarm for any time, any day.
Choose how long you want to rest — 10, 20, or 30 minutes
Phone on the bed, close to your body
Timer only starts once we detect you're actually asleep
Precisely dosed sleep to your needs
Tag caffeine timing and see whether your nap latency or night sleep changes.
Recharge without turning a short break into an accidental afternoon sleep.
Track short rest windows and full sleep sessions when your schedule moves around.
Mark recovery naps and compare mood, efficiency, and rest quality over time.
Use sleep mode and nap history together to understand what actually helped.
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.
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.
Smart naps, night sleep tracking, tag analytics, and regular alarms. Private by design and built for Android.
Coming soon