Sleep Calculator App Alternatives

Sleep Calculator App is described as 'Use Sleep Calculator to find the best time to go to bed or wake up based on 90-minute sleep cycles. Calculate REM sleep, ideal sleep time, and wake up refreshed' and is an website in the sport & health category. There are more than 25 alternatives to Sleep Calculator App, not only websites but also apps for a variety of platforms, including iPhone, Android, iPad and Android Tablet apps. The best Sleep Calculator App alternative is Sleep as Android, which is free. Other great sites and apps similar to Sleep Calculator App are Pokémon Sleep, ShutEye, Sleep Cycle Alarm Clock and SleepCalculator.info.

More about Sleep Calculator App
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Alternatives list

  1. SleepCalc icon

    SleepCalc

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    Free web-based sleep calculator that instantly suggests ideal bed- and wake-up times using 90-minute cycles and circadian-rhythm science—no downloads or sign-ups required.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
    A dark-themed “Sleep Calculator” interface shows a wheel-style time picker. The user selects the time they want to wake up (tab highlighted in purple) and scrolls hours-minutes-AM/PM columns. A prominent purple button labeled “Calculate Bedtime” sits beneath the picker, with a note: “Based on 90-minute sleep cycles – It takes the average person 15 minutes to fall asleep.”
    After tapping Calculate, the app reveals a “Suggested Bedtimes” section. It lists three color-coded cards—for example 9:15 PM (9 h • Ideal for recovery), 10:45 PM (7 h 30 m • Optimal), and 12:15 AM (6 h • Minimum)—each accompanied by an icon indicating sleep-quality level. A brief “Sleep Quality Guide” legend appears at the bottom to explain the color codes.
     
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