What's New

Top sleep cycle application for over 5 years
- Track sleep cycle and sleep quality
- Sleep better with soundscapes
- Measure resting heart rate when you wake up

Here's what we have for you in this update:
- Bug and performance fixes

Your reviews and feedback are important to us! We read them daily to continually improve our application.

The Sleep Time Team

App Description

Fall asleep, stay asleep, and wake up refreshed!

Sleep Time doubles as a comprehensive sleep analysis app and alarm clock. Celebrating the release of version 2.21, Sleep Time is the first sleep app with iOS 8 support and Apple Health integration!

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

√ 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

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 $9.99/month or $29.99/year through renewable iTunes subscription.

We offer auto-renewable subscriptions with the following specifications:
- Payment will be charged to your iTunes account at confirmation of purchase
- Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
- No cancellation of the current subscription is allowed during active subscription period
- Any unused portion of a free trial period, if offered, will be forfeited when the user purchased a subcription to that publication
- Our privacy policy and terms of use: https://www.azumio.com/page/privacypolicy

Please note: Continuous use of GPS activities in the background can dramatically decrease battery life.

Sweet Dreams,
Azumio Team

iPhone Screenshots

(click to enlarge)

Sleep Time: Cycle Alarm Timer screenshot 1 Sleep Time: Cycle Alarm Timer screenshot 2 Sleep Time: Cycle Alarm Timer screenshot 3 Sleep Time: Cycle Alarm Timer screenshot 4 Sleep Time: Cycle Alarm Timer screenshot 5

App Changes

  • September 28, 2012 Initial release
  • October 31, 2012 New version 2.1.0
  • January 14, 2013 New version 2.2.0
  • March 15, 2013 New version 2.2.1
  • July 24, 2013 New version 2.4
  • August 10, 2013 New version 2.5
  • August 21, 2013 New version 2.5.4613
  • September 17, 2013 New version 2.5.4614
  • October 22, 2013 New version 2.6.4830
  • December 03, 2013 New version 2.8.4830
  • January 30, 2014 New version 2.9.4943
  • February 11, 2014 New version 2.10
  • September 19, 2014 New version 2.11
  • October 07, 2014 New version 2.21
  • May 16, 2015 New version 3.6
  • June 10, 2015 New version 3.8
  • September 16, 2015 New version 3.9
  • January 11, 2016 New version 5.09
  • January 26, 2016 New version 5.11
  • June 22, 2016 New version 5.28
  • June 13, 2019 New version 5.168