Sleep Monitor: Sleep Tracker

Contains adsIn-app purchases
4.3
108K reviews
10M+
Downloads
Content rating
Everyone
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About this app

How did you sleep last night? 🌛

Sleep Monitor helps you track and record sleep cycle details. Sleep Monitor also has a smart alarm clock to remind you to sleep early at night and wake you up gently in the morning. In addition, Sleep Monitor provides relaxing sleep music to help you sleep better.

Key Features:
📊- New Feature: Sleep Trends
Improve sleep quality and develop better sleep habits with weekly and monthly data statistics.

🎙- Record Snoring or Dream Talking
Sleep Monitor will record snoring and grinding sounds made during your sleep, listen to them, and find more about your sleep the next morning! For fun!

💤- Mark Your Sleep Habits
If you drink, eat, exercise, have any pathological condition or depressed emotions before sleep, see how these slumber habits can impact your sleep.

📲- Track Your Sleep Phases
Sleepers will have 4 or 5 sleep cycles during the night. Usually, sleepers will pass four sleep stages in one sleep cycle: Non-REM 1(between waking and sleep), Non-REM 2(light sleep), Non-REM 3(deep sleep), and REM (Rapid Eye Movement, when most dreaming happens) sleep. These stages progress cyclically from 1 through REM then begin again with stage 1. A complete sleep cycle takes an average of 90 to 110 minutes, with each stage lasting between 5 to 25 minutes.

Sleep Monitor uses both microphone and accelerator sensors to measure body movements and environmental noise changes and then recognize your sleep stages.

📈- Get Your Sleep Score
Sleep Monitor will generate useful information for you after tracking, like sleep score, sleep cycle graphic, sleep statistics, sleep noise audios. Get your daily, weekly, or monthly sleep insights and use those data to help you sleep better. Sleep Monitor is especially helpful for those who want a way to check how their sleep is, and do not want to invest in an accessory like a smart band or smartwatch.

⏰ - Set Smart Alarm Clock
Set an alarm for your morning wake-up or nap or set a reminder for bedtime.

🎵- Listen to Soothing Lullabies
Suffering from insomnia? Listen to high-quality relaxing music to calm a racing mind before sleep. Fall asleep quickly with different kinds of sleep sounds.

✍ - Write Sleep Notes
Take brief notes for your sleep. Write down anything you want so you will never forget about them.

👩‍❤️‍💋‍👩Sleep Monitor Target Group
- People who are suffering from insomnia, a sleep disorder that is characterized by difficulty falling and/or staying asleep.
- People who want to do self-diagnosis whether there are signs of poor sleep quality.
- People who care about sleep quality

📲App Working Requirements
√ Place your Android phone near your pillow or bed
√ Sleep alone to eliminate interference
√ Make sure the battery is enough

🏳️‍🌈Language Support
English, Spanish, German, French, Portuguese, Dutch, Polish, Turkish, Finnish, Italian, Hungarian, Slovak, Greek, Bulgarian, Czech, Catalan, Danish, Romanian, Japanese, Korean, Arabic, Persian, Russian, Ukrainian, Breton, Lithuanian, Chinese, Indonesian, Vietnamese

📝 About Sleep Records Saving
Sleep Monitor free version users can save the latest 7 sleep records on the phone; Sleep Monitor pro version users can save up to 30 latest sleep records in the app side and backup all history records on the server-side for later checking.

🔐 Enjoy Sleep Monitor Pro
√ Customize sleep factors
√ Download audio recordings
√ Save 30 and backup all sleep records
√ Unlock all sleep music, sleep notes, sleep trends
√ No ads

❤️FAQ
http://sleep.emobistudio.com/faq/index.html

Make sure your bedroom is quiet, dark, cool. Feel relaxed before sleep.
Hope you sleep like a baby!
Updated on
Jul 28, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 9 others
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
106K reviews
YJ
July 8, 2025
Been subscribing to Sleep Monitor for 2mons. At first thought it was really good. Now I'm beginning to doubt the sleep stages - there have been times when I've been dreaming, but it shows no REM sleep. Also missclasifies sounds a lot. And the sleep trend data misses to add up all the sleep sessions in a day, or show the amount of REM in sleep quality. Made me aware of how little sleep I was getting, but not sure it's worth paying for.
3 people found this review helpful
Did you find this helpful?
Fasting APP Group
July 9, 2025
Hello, thank you for your feedback. Does your report not show REM? How many times do you sleep in a day? The app cannot track sleep stages that are shorter than 30 minutes. If you have any questions, please email sleepmonitor.dev@gmail.com.
Jacob L
June 8, 2025
I really dislike rating anything 1 star but this one deserves it. This sleep app was good during the trial so I decided to pay the $35 for the app and since then it's been terrible. The alarm never rings now. I set a smart timer or regular alarm that has a 30 min window and I set the monitoring of the app. (The alarm doesn't ring unless it's monitoring). Then I set for monitoring. My wakeup time will pass by and the alarm never rang. I have to set a backup alarm. sucks. Do not buy!!
26 people found this review helpful
Did you find this helpful?
Fasting APP Group
June 9, 2025
Thanks for the feedback. The alarm not going off could be due to several reasons. Has the app been running properly all night? Could you please send any issues you encountered to our email at sleepmonitor.dev@gmail.com? To see more, open the app>Discover Tab>Help Guide. Happy to assist you.
Amber Goldsmith
June 9, 2025
After seeing this app advertised on Instagram, I was excited to try it out due to a family history of sleep apnea and snoring, and possibly buy a monthly subscription. However, after trying out the app, not only does it have little to no free features, but there's no option for a monthly subscription, only annual. I don't feel comfortable paying for an entire year's worth of using the app just to access paywalled features. Please add a monthly subscription option.
36 people found this review helpful
Did you find this helpful?
Fasting APP Group
June 10, 2025
Dear users, you can choose different payment methods, the app supports annual/monthly/weekly payment. You have the choice of whether to pay for the program or not. We will not charge users without permission, please rest assured.

What’s new

Hey Sleep Monitor users! In this release, we fixed background music playback interruptions.

Now you can just relax and let those calming tunes tuck you in, all the way till your smart morning wake-up~ Hit update to enjoy a smooth, uninterrupted sleep routine!