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Sleep Time+ : Sleep Cycle Smart Alarm Clock, Sleep Tracker with Sleep Cycle Analysis and Soundscapes for Better Sleep

By Azumio Inc.

This app is only available on the App Store for iOS devices.


Fall asleep, stay asleep, and wake up refreshed! Sleep Time is an advanced sleep tracking alarm clock that tracks your sleep quality and helps you sleep better. We measure your sleep automatically without the need of any expensive fitness trackers.

With over 35 million users, the award-winning Sleep Time app is all over the web.


“Azumio has fulfilled the need for an accurate, state-of-the-art algorithm for sleep analysis that is consumer-accessible as an integral part of a complete mobile health solution” - Dr. Paul Zei, Stanford University

5/5 “I’ve tried several apps that log the amount of sleep and the types you experience, and the interface of Sleep Time is the best by far. It’s easy to understand and simple to use.”

5/5 “Fascinating results. It works remarkably well providing helpful information.”

Featured on: TechCrunch, Mashable, Lifehacker, 148apps, eHealth, and many others...

#1 Sleep Analysis app in United States
#1 Sleep Analysis app in Japan
#1 Sleep Analysis app in United Kingdom
#1 Sleep Analysis app in Australia
#1 Sleep Analysis app in Germany
#1 Sleep Analysis app in France
#1 Sleep Analysis app in China
#1 Sleep Analysis app in Russia
#1 Sleep Analysis app in Canada
… and many more.



√ Set the alarm clock with a single gesture

√ Fall asleep to soundscapes or white noise!

√ Alarm rings even in silent mode

√ Choose from any of our 20 built in alarms

√ OR wake up to your favorite song from iTunes!

√ Sleep Lab™ with sleep cycle analysis - light sleep, deep sleep, R.E.M.

√ Detailed monthly and weekly graphs

√ Advanced wake-up optimization algorithm

√ Instant Heart Rate integration to detect pulse after waking up

√ Full history and graphs make comparison easy

√ Backup and restore your sleep data on the cloud

√ No glasses needed for our easy to read interface!

√ Apple Health Integration

Perfect for people with sleep apnea, snoring issues, fatigue, stress, tiredness, exhaustion, lack of sleep, night time sleep disorders, dreams, require white noise, ambient sounds, soundscapes, calming nature melodies, sleep diary recording, and more. We make Sleep Time for our users and we’d love to hear your feedback – tell us what you think so we can implement your ideas and suggestions in the next update!

Upgrade to Premium to receive unlimited access to Premium Programs and Playpen Freeplay workouts, HD videos, dynamic and motivational audio, workout email summaries with tips and advice on healthy living, priority support, and more for $8.99/month or $39.99/year through renewable iTunes subscription.

Sweet Dreams,
Azumio Team

What's New in Version 5.28

- Set custom sleep reminders in Settings so you never miss a night of sleep tracking
- Under the hood improvements and bug fixes

If you enjoy using Sleep Time and feel that it has improved your sleep quality, please write us a positive on iTunes. If you have any other questions/concerns, please feel free to reach out to us at

iPhone Screenshots

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Customer Reviews

Pretty good, but...

Mostly does what it says, but needs a couple more refinements (maybe they're available in the pay version?):
1. In the morning, it shows total hours from the time you started the app until you stop it. It also shows your "effeciency" as a percentage. So it tells you how many hours you were in bed, and what percentage of those hours that you were asleep. Scroll down a bit and it tells you how many hours were "Light Sleep" and how many were "Deep+REM Sleep" Hey. how about simply showing me the actual total hours I slept instead of making me do the math?
2. The main insights page starts off with a couple of summary metrics. But how useful is it to know that your total sleep = 4,250 hrs and 45 min? Or that your total resting heart rate is "344"?

Otherwise, I'm feel like it's fairly good at detecting sleep vs. not (although I think it sometimes attributes my wife's tossing and turning to me). And I've been impressed with it's abiltiy to trigger the alarm when you're in a lighter sleep cycle.

Not worth our money

I get up several times a night to use the restroom and this app doesn't recognize or record truly when I'm awake I wasted my money on this app and I want a refund. It doesn't track right. Therefore you shouldn't be charging for this app. It also wakes me up an hour before My alarm is set to go off. I would really like to see an Apple Watch app added to this app. It would help your sleep time++ work better. I spoke to one guy through your Argus that uses a fit bit. So I ran a little test of my own. I put my Apple Watch on its charger in evening to give it a full charge before my bed time and there was orange at the time I got up for a nature call. But it still doesn't turn orange at the end when the alarm goes off to wake me, indicating when I'm awake. Bottom line, this still needs a lot of work. Suggestion: how about adding a sound recording feature. So people can learn if they talk in their sleep or snore or have apnea. This app is not worth the money. you lie in the diagram. it's never been accurate. I wasted my money. And when I messaged through facebook you just gave me the run around.

Works great!!

I read previous reviews of this application, and I do not agree. The application does not assess what is going on for you during your sleep cycle. That part is up to you. All the app does is to provide you with the necessary information so that you can assess your sleeping patterns, cycle and how you feel in the morning. With that being said, the application delivers everything that the publisher states it will. I would recommend this to anyone who wishes to assess their sleep cycles as to maybe why in the morning they wake up, and they don't feel all that well. Or they wake up and they feel great, and this way they can reassess what and how well they slept so that they can get another great night of sleep.
Worth every penny.

Sleep Time+ : Sleep Cycle Smart Alarm Clock, Sleep Tracker with Sleep Cycle Analysis and Soundscapes for Better Sleep
View in iTunes
  • $1.99
  • Category: Health & Fitness
  • Updated:
  • Version: 5.28
  • Size: 145 MB
  • Languages: English, Arabic, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

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