Zleeper is a sleep tracker for apple watch. Simply toggle the sleep mode when you get in to bed to monitor your sleep pattern. You can set a Zmart Alarm (smart alarm) to attempt to wake you up during your light sleep. The Zmart alarm has a time buffer which will start monitoring for light sleep 15 to 30 minutes before the time that the alarm has been set for.

The companion iPhone app will analyze your sleep pattern and display the corresponding information, such as; time in bed, sound sleep, light sleep, and sleep efficiency. While you sleep the iPhone app will display a clock view and sound a back up alarm if needed.

*Requires that Apple Watch Wake Screen be set to Resume Last Activity for Zmart Alarm to ring.
*Requires that you leave the iPhone App running in the foreground for back up alarm to ring.
* Requires Apple watch 2.0 +

What’s New

Version 1.5

Every update to our app includes reliability and performance improvements.

Ratings and Reviews

1.8 out of 5
4 Ratings

4 Ratings

kurtrock ,

I have hopes, but.....

Tried this Saturday night, but it didn't seem to work. Tried it again Sunday night and it said that it recorded something. When I reviewed the data, it indicated I slept 40h 44m. Guessing it didn't turn off during the day yesterday? The tracking seemed to toggle on and off fine on the watch, so I'm not sure what happened.

Wouldn't normally give such a low review so quickly, but I can't seem to access the developer's website or support link in the App Store. Flaky product that requires payment with no support is not a recipe for success....

Tried it again last night. I slept for about 6 hours. Zleeper says I slept for 18. Oh, how I wish that were true! Hoping an update comes soon, because I think I like the data set...if it were only close to accurate!

Niner Freak ,

Bad app needs work

On consecutive nights I toggle to sleep mode as I'm going to bed. When I wake up in the morning I toggle sleep off. When I check the dats on my phone it indicates her I slept 15 hours and has changed my pm sleep time to am. That makes it useless. Also, there is no way to edit the times from the phone app. This would be helpful.

meqtpi13 ,


I paid five dollars for an app that crashes every time I open it. Only once did it work and it didn't even record my sleep. I want my money back.


Quackstro, LLC
26.8 MB

Requires iOS 9.0 and watchOS 2.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish, Dutch, Finnish, French, German, Greek, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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