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Sleep Cycle VS SleepUtility

Compare Sleep Cycle VS SleepUtility and see what are their differences

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Sleep Cycle logo Sleep Cycle

Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.

SleepUtility logo SleepUtility

Optimize your sleep with SleepUtility. Calculate the best times to fall asleep and wake up based on sleep cycles.
  • Sleep Cycle Landing page
    Landing page //
    2023-10-18
  • SleepUtility SleepUtility - Homepage
    SleepUtility - Homepage //
    2025-05-12
  • SleepUtility SleepUtility - Dashboard
    SleepUtility - Dashboard //
    2025-05-12

SleepUtility: Your Personal Sleep Cycle Calculator

Ever woken up feeling like you've been hit by a truck, even after a full night's sleep? That's probably because you woke up in the middle of a deep sleep cycle. SleepUtility fixes that.

What is SleepUtility?

SleepUtility is a simple, science-backed tool that helps you time your sleep perfectly. No complicated setup, no wearables required - just practical sleep cycle calculations that actually work.

How it works

We all sleep in cycles of about 90 minutes. Each cycle takes you through different stages of sleep, from light to deep and back again. Waking up during deep sleep is what makes you feel groggy and disoriented.

SleepUtility does the math for you: - Input when you want to wake up → we'll tell you the best times to go to sleep - Input when you're going to bed → we'll suggest the optimal times to set your alarm

By timing your wake-up to match the end of a sleep cycle, you'll feel refreshed instead of dragging yourself out of bed.

Why people love SleepUtility

  • It's science-based - Uses sleep cycle research to improve your rest
  • Super simple - No account needed, no complicated tracking
  • Actually works - Users report feeling more energetic and alert
  • Free to use - Better sleep shouldn't cost you anything

Who is this for?

  • Students with irregular schedules
  • Professionals trying to optimize productivity
  • Anyone who's tired of feeling tired
  • People who struggle with morning grogginess

Better sleep = better everything

When you wake up feeling refreshed, everything improves. Your mood, focus, productivity, and even physical health all benefit from properly timed sleep.

Let SleepUtility do the calculations and start enjoying mornings again.

Check it out at sleeputility.com!

Sleep Cycle

Website
sleepcycle.com
$ Details
-
Platforms
-
Release Date
-
Edit details

SleepUtility

Website
sleeputility.com
$ Details
free
Platforms
Browser Google Chrome Firefox Opera Safari Brave
Release Date
2025 May
Edit details

Sleep Cycle features and specs

  • Accurate Sleep Tracking
    The app uses sound technology to accurately track your sleep patterns and phases, providing detailed analysis to help improve your sleep quality.
  • Smart Alarm Clock
    Sleep Cycle features a smart alarm clock that wakes you up during your lightest sleep phase, helping you feel more refreshed and less groggy in the morning.
  • Customizable Sleep Goals
    Users can set personalized sleep goals and receive tailored advice and insights to help achieve them.
  • Sleep Aid Programs
    The app offers various sleep aid programs such as guided meditations and soothing sounds to help users fall asleep faster.
  • Integration with Other Health Apps
    Sleep Cycle integrates with other health and fitness apps, such as Apple Health, to provide a comprehensive view of your overall well-being.
  • User-Friendly Interface
    The app is noted for its intuitive and easy-to-navigate interface, making it accessible for all users.

Possible disadvantages of Sleep Cycle

  • Subscription Costs
    While the basic features are free, many advanced features require a premium subscription, which might be costly for some users.
  • Battery Drain
    Continuous use of the app can significantly drain your smartphone's battery, especially if used without being plugged in overnight.
  • Potential Privacy Concerns
    The app collects and stores sleep-related data, which may raise privacy concerns for some users.
  • Accuracy Limitations
    Although the app generally provides accurate tracking, it may not be as precise as dedicated wearable sleep trackers.
  • Requires Smartphone Placement
    The app requires your smartphone to be placed on your bed, which could be inconvenient or uncomfortable for some users.
  • Intermittent False Alarms
    Some users have reported experiencing false alarms or disruptions, potentially due to the app mistaking noises or movements.

SleepUtility features and specs

  • Sleep Calculator
    Calculate optimal sleep and wake times based on sleep cycles

Analysis of Sleep Cycle

Overall verdict

  • Overall, Sleep Cycle is highly regarded for its user-friendly interface, effective sleep tracking, and comprehensive analysis capabilities. While some users debate the accuracy of its sound analysis compared to wearables, many find it beneficial for improving sleep quality. However, as with any app, personal experiences may vary, and it might not suit everyone’s needs.

Why this product is good

  • Sleep Cycle is considered good by many users due to its innovative approach to sleep tracking and intelligent alarm clock features. It uses sound analysis to monitor sleep patterns and wakes users up during their lightest sleep phase, which can help them feel more refreshed. The app provides detailed sleep statistics and insights, which can help users understand their sleep habits and make improvements.

Recommended for

    Sleep Cycle is recommended for individuals who wish to gain better insights into their sleep patterns and improve overall sleep quality. It is especially useful for those who prefer smartphone-based solutions rather than wearable devices and for those who appreciate waking up at an optimal time for feeling refreshed.

Category Popularity

0-100% (relative to Sleep Cycle and SleepUtility)

Sleep Cycle

SleepUtility

Sleep
84 84%
Sleep
16% 16
Online Calculators
80 80%
Online Calculators
20% 20
Alarm Clock
100 100%
Alarm Clock
0% 0
Productivity
0 0%
Productivity
100% 100

Questions and Answers

As answered by people managing Sleep Cycle and SleepUtility.

Which are the primary technologies used for building your product?

SleepUtility's answer:

We built SleepUtility with Laravel 11 running the backend, Vue.js powering the frontend, and Inertia.js serving as the glue between those two.

What makes your product unique?

SleepUtility's answer:

SleepUtility stands out because it's easy to use, completely free, and has no annoying ads. We've focused on one thing, and that is helping you wake up feeling great.

Why should a person choose your product over its competitors?

SleepUtility's answer:

SleepUtility is just a simple website that does one job really well. No hidden costs, no premium features locked behind paywalls, no "free trial" that suddenly ends. What you see is what you get, a handy tool that helps you sleep better.

How would you describe your primary audience?

SleepUtility's answer:

Technically everyone, as we all need to sleep! But we're especially helpful for people who drag themselves out of bed feeling meh every morning. If you've ever hit snooze over and over, or wondered why 8 hours of sleep sometimes leaves you feeling worse than 5, SleepUtility was made for you.

What's the story behind your product?

SleepUtility's answer:

It started with me waking up feeling tired even after getting plenty of sleep. After digging into why, I discovered it was probably because my alarm was waking me up out of deep sleep. So I built myself a little command-line tool to calculate better sleep times. It worked so well for me that I turned it into a proper website so anyone could use it, even on their phones while they're setting up for bed.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Sleep Cycle and SleepUtility

Sleep Cycle Reviews

The Best Apps for Cyclists
More than that, Sleep Cycle Alarm Clock boosts your shot at A+ Zs by collecting and displaying your sleep history in an easily analyzable way. The data in the free version serve mostly as a collective indicator of whether you’ve been getting quality sleep overall. It includes the past night’s data on time spent asleep; graphs of your sleep depth throughout the night; a...
Source: www.bicycling.com

SleepUtility Reviews

We have no reviews of SleepUtility yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Sleep Cycle seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Sleep Cycle mentions (1)

  • The early bird falls asleep before breakfast?
    EVERYONE knows they are not to wake me unless I ask them to. It often gives me a migraine to be dragged out of deep sleep. If I have to be awake at a certain time I typically schedule myself to wake up from naps/nighttime sleep by using a sleepcycle estimator like https://sleepyti.me or an app like https://sleepcycle.com. Source: over 3 years ago

SleepUtility mentions (0)

We have not tracked any mentions of SleepUtility yet. Tracking of SleepUtility recommendations started around May 2025.

What are some alternatives?

When comparing Sleep Cycle and SleepUtility, you can also consider the following products

Sleep as Android - Common alarm clocks ignore your sleep cycles, they wake you on schedule no matter your are currently in your deep sleep. Waking up from deep sleep is unpleasant, it makes you tired and it may negatively affect your productivity during the whole day.

Sleep Calculator - Want to wake up in a good shape?

SleepBot - SleepBot is a sleep tracking app available in Google Play and the Apple App Store.

Sleep Time - Alarm Clock - Sleep Time provides insight into your sleep patterns. By tracking your level of movement throughout the night, Sleep Time generates customized sleep data in easy-to-read charts.

Sleep Watch - AI-powered, personalized insights about your sleep.

Awesome ChatGPT Prompts - Game Genie for ChatGPT

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