Sleep Time : Sleep Cycle Smart

Contains adsIn-app purchases
31.5K reviews
Content rating
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About this app

Zzz. Sleep and slumber better. Wake up calm, refreshed, and well rested every night with Android. Best alarm clock and sleep diary to sleep well. Your sleep guru & sleep timer.
Sleep well and quiet. Wake up at the lightest sleep stage with your sleep cycle timer. Understand sleep score and analysis. Be your own sleep guru with the best sleep timer.

How It works:
1. Download Sleep Time. Set alarm clock. Put Android under pillow.
2. Sleep well and quiet. Sleep time detects movements during bed time or nap, whether you are snoring or dreaming. Choose soothing & peaceful alarm sound, lullaby & soundscape.
3. Sleep Time wakes you up gently at the lighest sleep stage so you are well rested.
4. Receive sleep score & analysis about duration, REM & sleep cycle. Write notes about dreams, lucid dreams, stories or sleep habit.
5. Understand sleep analysis trends. Sleep better. Wake up refreshed. Be well rested at all times.

★ Set alarm clock with Android. Put Android under pillow.
★ Choose soothing & peaceful alarm sound, lullaby & soundscape. (sleep fan, waves, and more)
★ Zzz. Wake up at the right sleep phase & sleep cycle, and feel well rested.
★ Sleep Lab™ and Sleep Genius™ and Sleep Guru with sleep cycle analysis
★ Smart alarm algorithm to optimize sleep quality, bedtime, slumber. Makes sure you sleep well.
★ Sleep history and graphs about sleep duration, REM & sleep cycle

Zzz. Sweet Dreams! Your sleep guru. Wake up refreshed with soothing & peaceful alarm sound, lullaby & soundscape
Updated on
Oct 17, 2017

Data safety

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Ratings and reviews

29.9K reviews
Usagu Kagemusha
September 19, 2020
Used to set a backup just in case, but this alarm works well. Generally find I wake up feeling more awake than usual, so I think it is working. Update: stopped working at all. Not sure if it is due to a system update. It looks like it is working, but no alarm goes off. (I watched it blow right through the set time.) I am really disappointed because I liked this app a lot when it was working.
2 people found this review helpful
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A Google user
February 2, 2020
Poorly designed interface, very fiddly to set. When you do set it, it sometimes forgets it was set and you lose credit for a full night's sleep. If it does stay set, however, the graph of sleep quality is very helpful. You'll have to work on the interface a lot if you want me to pay for the full version. Who would pay the high fees for this defective app?
15 people found this review helpful
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Emily Berriochoa
January 19, 2021
Hit and miss. Half the time the alarm isn't set when I wake up in the morning ( have to set back up alarm). Can't figure out the benefit of the paid version, other than get rid of ads. Doesn't add any functionality or insights. Also, freezes up when I'm trying to set the alarm at night. Have to close all apps on my phone, restart azumio, and try again. Too buggy to be worth it, especially the paid version.
25 people found this review helpful
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What's new

Performance and stability improvements