Sleep Cycle alarm clock

Sleep Cycle alarm clock

By Northcube AB

  • Category: Health & Fitness
  • Release Date: 2009-07-23
  • Current Version: 5.4.5
  • Adult Rating: 4+
  • File Size: 80.45 MB
  • Developer: Northcube AB
  • Compatibility: Requires iOS 9.0 or later.
Score: 4.5
From 181,120 Ratings


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. No need to place your device in bed - Sleep Cycles uses sound analysis sleep tracking. Sleep Cycle helps millions of people all around the world wake up rested. Continuously rated as the best smart alarm clock on the market. Featured in: CNN, Wired, The Guardian, The Wall Street Journal, BBC, The New York Times. #1 Top Paid app in United States #1 Top Paid app in United Kingdom #1 Top Paid app in Japan #1 Top Paid app in Germany #1 Top Paid app in France ...and more. * Our patented technology monitors your sleep movements using sound or vibration analysis. * Sleep Cycle then finds the optimal time to wake you up during a 30 minute window that ends at your set alarm time. * Recommended placement: Near the bed or on the floor. 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 microphone or accelerometer in your iPhone to monitor your movements 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. -------------------------- MAIN FEATURES FREE √ Sleep analysis with our patented sound analysis technology or if you prefer, the sensitive accelerometer in your iPhone √ Detailed sleep statistics and sleep graphs √ Carefully selected alarm melodies √ Snooze by shaking or double tapping the phone lightly √ Snore detection - detect, track and measure your snoring √ Fully integrated with Apple Health. Exchanges sleep analysis and heart rate √ 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 √ Support for the M7 and M8 co-processor - measure your daily physical activity and see how it affects your Sleep Quality √ Export sleep data to Excel for detailed analysis PREMIUM √ Online backup - secure your data online to make sure it’s always with you √ Long term trends - compare your sleep with the world √ Snore trends - view historical snore trends data √ Sleep aid - helps you fall asleep faster √ Sleep notes - see how events such as drinking coffee, eating too much or having a stressful day affect your sleep quality √ Wake up mood - see how using Sleep Cycle affects your morning moods √ Weather - see how weather affects your Sleep Quality √ Heart rate monitor - measure your resting heart rate (RHR) every morning using the built-in camera in your device √ Philips HUE light bulb support - simulate a natural sunrise to give you an even softer wake-up and more ------------------------- REQUIREMENTS Ability to charge your phone by the bed. Ability to place your phone near the bed, such as on a nightstand table or on the floor. ------------------------- The optional Premium subscription costs $29.99 per year. It will be charged from your iTunes account after the purchase. You can manage or cancel your auto-renewable subscription by entering the user settings in iTunes after the purchase. The subscription will be auto-renewed 24 hours before the subscription period ends with the same kind of subscription you already bought to the same price. It's not possible to abort the subscription during the time it's active. Terms and Privacy:



  • Almost perfect

    By moontraces
    I like everything about this app, except that the heart rate reading function does not operate properly. I have written to the developers twice, received assurances that it was being worked on. For about three days it functioned well, then stopped taking heart rate readings again. Otherwise a great app, lovely being able to track and understand how sleeping or not, affects my daily experience.

    By Beautitl
    this app has been working well for 6 months. Two nights in a row now it hasn’t gone off for no reason. I’m very upset because I was late. Its happened before too
  • Turning off

    By Duckmysick21
    Not sure what’s going on with the app, but sleep cycle turned off on its own in the middle of the night for the third time in the last couple months making me late for work. I would activate it around 10pm and when I wake up I would see that it turned off about 2.5 to 3 hours into sleeping.
  • Great app

    By Alogistics
    Have been using for over a year and it has helped me focus on getting more sleep.
  • Works great

    By Master Yehuda
    I few years ago I did a science experiment to see what makes you fall asleep the fastest and I used this app to help me. It works so well. I got an honorable mention on that experiment
  • Frustrating

    By cuzimkylieduh
    I downloaded this app because it has such a high rating, but ended up just not using it, so I deleted the app from my phone. Then suddenly, a month later, they’re taking $29.99 (plus tax of course) out of my account for a yearly premium prescription for an app that I do not even have on my phone.
  • Method of measurement

    By MackieLoo
    I feel like it would be really beneficial if instead of using either the microphone or the accelerometer, it used both at the same time to more accurately measure your sleep. Just a simple idea that I feel might make it more accurate. :)
  • This was perfect until health app sync broke

    By MonikaLearnsJapanese
    Uploading each night each night. So records a week old are uploaded 7 times, records 1 month old 30 times etc. if you travel across time zones, they get uploaded for that time zone so eventually it looks like you’re in bed 24/7 in the health app. Please fix and the missing stars will come back.
  • Bad timer

    By bad timet
    It wakes me up before my timer is supposed to and won’t stop until the time tunes out for me that get up .Other than that it’s a good app
  • Love this app

    By Nicknames taken rewrite
    You can have this app monitor your sleep, wake you up gently and let you hear if you snore at night. I love looking at the trends I set and quality of sleep I get. Also helps me figure out how much sleep I really need. Only wish is that I could have a graph of the time of night I get the best sleep or deepest sleep on an average.