Key Details of Sleep Cycle alarm clock

  • Wake up in the lightest sleep phase and feel rested.
  • Last updated on September 14, 2024
  • There have been 2 updates
  • Also available on
  • Virus scan status:

    Clean (it's extremely likely that this software program is clean)


Enlarged image for Sleep Cycle alarm clock
Sleep Cycle alarm clock 0/5

Editors' Review

Download.com staff

An intelligent alarm clock, Sleep Cycle monitors your movement during sleep with your device's accelerometer and plays a smooth melody when you're in the lightest sleep phase, so that you'll wake up feeling rested and relaxed.

Pros

Surprisingly effective: With Sleep Cycle, the developers have managed to turn a great idea into a straightforward and practical app that after minimum configuration proves capable of monitoring your sleep and sounding the alarm at just the right time.

Nightly & longterm graphs: You can view sleep analyses for every night, including light sleep and deep sleep. Once you've used the app for five consecutive nights, you can access graphs that enable you to track your sleep quality over time to discover your best sleep nights.

Sleep Aid: This version of the app introduces Sleep Aid, a selection of soothing natural sounds that can ward off insomnia and send you snoring in no time.

Cons

Radiation risk: There is a growing concern worldwide about the radiation levels smartphones emit, and many experts recommend that you minimize smartphone usage and keep the device far from your person when you don't need it. To work, Sleep Cycle has to be placed close to your pillow, only inches away from your head.

Efficiency depends on mattress and placement: If you place your device too far away from you in bed, or if you sleep on a really hard mattress, the app will have problems detecting your movements, and the wakeup call may be unreliable.

Bottom Line

Easy to use and well-built, Sleep Cycle proves a great alarm clock. If you have to wake up early every morning to go to work or school, you should really try this app.

What's new in version 4.24.35-production

  • Fix a bug where the app was unable to communicate with the SleepSecure server
  • Now able to install on Nexus 5X


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Full Specifications

GENERAL
Release
January 5, 2017
Latest update
September 14, 2024
Version
4.24.35-production
OPERATING SYSTEMS
Platform
Android
Operating System
Android 13.0
POPULARITY
Total Downloads
184
Downloads Last Week
0

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Developer's Description

Wake up in the lightest sleep phase and feel rested.

Waking up made easy. An intelligent alarm clock that analyzes your sleep and wakes you in the lightest sleep phase - the natural way to wake up feeling rested and relaxed. Sleep Cycle monitors your movement during sleep using the extremely sensitive accelerometer in your phone. Sleep Cycle then finds the optimal time to wake you up during a 30 minute window that ends at your set alarm time. Look at the screenshots for recommended phone placement.

As you sleep you go through different phases, ranging from deep sleep to light sleep. The phase you are in when your alarm goes off is critical for how tired you will feel when you wake up. Since you move differently in bed during the different phases, Sleep Cycle can use the accelerometer in your phone to monitor your movement and determine which sleep phase you are in. Sleep Cycle wakes you when you are in your lightest sleep phase. Sleep Cycle was developed using proven sleep science and years of research and development.Sleep Cycle analyzes your sleep and wakes you in your lightest sleep phase. Detailed sleep statistics and sleep graphs for every night. 15 carefully selected, high quality, alarm melodies. Use your own music as wake up sound. Snooze by shaking or tapping the phone lightly. Customizable wake up window. From instant (regular alarm clock) up to 90 minutes. Background mode - set your alarm and exit Sleep Cycle - sleep analysis will continue in the background. Sleep notes - see how events such as drinking coffee, eating too much or having a stressful day affect your sleep quality. Long term graphs - track sleep quality over time, see which days of the week you sleep best and much more.