Sleep Time Calculator

Get the sleep you deserve

Free · Designed for iPad. Not verified for macOS.

Know the best possible times to wake up with this free app. The five stages of sleep, including their repetition, occur cyclically. The first cycle, which ends after the completion of the first REM stage, usually lasts for 90 minutes. With 8 hours of sleep you typically go through 4-5 cycles a night. Waking up in the middle of a cycle leaves you feeling groggy, but waking up at the end of a cycle leaves you feeling awake and alert. This app gives you recommendations on when to wake up in the morning to decrease the likelihood that you will feel groggy.

  • 3.8
    out of 5
    23 Ratings

This update from Apple will improve the functionality of this app. No new features are included. - Refresh button actually works now - Time selector fixes

The developer, Recked Software LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

  • No Details Provided

    The developer will be required to provide privacy details when they submit their next app update.

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Recked Software LLC
    Size
    • 57.2 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 8.0 or later.
    • iPhone
      Requires iOS 8.0 or later.
    • iPad
      Requires iPadOS 8.0 or later.
    • iPod touch
      Requires iOS 8.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    13+
    • 13+
    • Infrequent
      Medical Treatment information
    Copyright
    • © 2017 Made With Mustard