Sleep Monitor: Sleep Tracker

Contains adsIn-app purchases
4.5
111K 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
Feb 9, 2026

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

4.5
110K reviews
iizumii
February 6, 2026
I was told I snore in my sleep and I didn't believe it until I got this app and heard the audio. It's been a year and keeping track of my sleep has helped me STOP snoring about 95% of the time. The only thing I wish this app had was an option to separate night time sleep and daytime naps, without resetting your daily records and stats. Please add a napping option!
15 people found this review helpful
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Fasting APP Group
February 9, 2026
Thanks for your great feedback! Currently, the app supports tracking naps over 30 minutes, which are recorded separately from your night sleep without resetting your daily stats. We’ll definitely consider your suggestion for further improvements. Thanks again for sharing, and feel free to contact us anytime!
RMV
September 10, 2025
BEWARE: I bought this app based on an advertised trial period that I could cancel. Even though I cancelled within a few hours, I was still charged for the entire month. Google Play refused to address it because it is apparently their policy that all sales were final and I was told to contact the company- who was foreign and, of course, did not assist. Bottom line: don't fall for the free trial language. The app isn't that great anyway.
49 people found this review helpful
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Fasting APP Group
September 11, 2025
Dear user, we strictly follow Google's official refund policy. Canceling your subscription means you cancel the renewal. Canceling your subscription does not automatically result in a refund. If you do cancel and request a refund within a few hours after subscribing, please email sleepmonitor.dev@gmail.com. The staff will handle it for you.
Roseann M. Kelly
May 11, 2024
The app is easy to download and free to use. I live alone and wasn't sure if I snored or talked in my sleep. But I have found myself waking up during the night and wondered if that was why. The first night I used it I had several episodes of snoring and talking in my sleep. Unfortunately you have to have premium to hear it. My Fitbit has always rated my sleep in the '70s to '80s. This app rated it really well in the high 90s. Interesting data to say the least... Now I want to know more!
49 people found this review helpful
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What’s new

We are thrilled to announce that the latest version of Sleep Monitor is now available, bringing a range of significant improvements and bug fixes to ensure you get a better sleep tracking experience.

Download the latest version and start enjoying an improved sleep quality monitoring experience!