NapSense: Power Nap Timer
Nap alarm that waits for sleep
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Set 20 minutes and get 20 minutes. NapSense waits until you are actually asleep before the countdown starts, so the time you spend drifting off never eats into your nap.
Set a 20-minute nap and an ordinary timer starts counting the moment you press it. Spend twelve minutes falling asleep and you get eight minutes of rest.
NapSense waits. It watches for your phone to go still, and only then does the countdown begin. The nap you set is the nap you get.
HOW IT WORKS
1. Choose how long you want to nap, anywhere from 5 to 60 minutes.
2. Keep using your phone. Watch something, scroll, whatever helps you wind down.
3. When you drift off and the phone stops moving, NapSense starts the timer.
4. The alarm wakes you at the end of the nap you actually asked for.
WHAT YOU GET
• Sleep detection. The countdown starts when you do, not when you press start.
• Four white noise tracks: rain, ocean, pure rain, and midnight ambience.
• Live Activities. Detection status and countdown on the Lock Screen and Dynamic Island, iPhone 14 Pro and later.
• Alarms that work on silent. Pick a sound, set the volume, and test it before you lie down.
• Nap history. Every nap you have taken, how long it took to drop off, and how long you slept.
• A Home Screen widget. One tap and the nap begins.
WHERE TO PUT YOUR PHONE
On the mattress beside you, or in your hand. A phone on a nightstand never moves at all, so NapSense reads that as sleep the moment you set it down and starts counting early.
IN A HURRY
If you know you will be out in seconds, skip detection and start the countdown yourself.
NapSense is free. One purchase removes ads and unlocks your nap history. There is no subscription, nothing renews, and there is nothing to cancel.
No account. No sign-up. Your naps stay on your phone and are never uploaded.
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Note: Not a medical device. For rest and wellbeing, not for diagnosis or treatment.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The Pro offer now shows up after your second nap instead of your fourth, plus small fixes. Thanks for napping with NapSense.
The developer, CHI-YU WU, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- CHI-YU WU
- Size
- 19.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- In-App Purchases
Yes
- NapSense Pro $4.99
- Copyright
- © 2025 Orca Studio