
Sleep tracking devices are becoming increasingly popular, with many people wanting to gain insight into their sleep patterns. While sleep trackers do not directly measure sleep, they can collect a lot of information about sleep habits and patterns. There are a variety of free sleep-tracking options available, from apps to wearables, which can help you understand your sleep better and even improve your sleep quality.
| Characteristics | Values |
|---|---|
| Devices | Apple Watch, Pokemon Go Plus Plus, Oura Ring 4, WHOOP 4.0, Sleep Cycle, Sleep Tracker |
| Features | Sleep duration, sleep quality, sleep trends, sleep recorder, smart alarm, sleep aid, sleep notes, sleep schedules, sleep goals, sleep history, sleep reports, sleep data, sleep debt, sleep stages, sleep rewards, sleep notifications, sleep stories, sleep tips, sleep analysis, sleep tracking apps |
| Limitations | Requires quiet environment, may not accurately track sleep, may not differentiate data for multiple people sleeping together, may not measure sleep directly |
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What You'll Learn

Free sleep tracking apps
There are several free sleep-tracking apps available for download. Here are some of the most popular options:
Sleep Cycle
Sleep Cycle is a versatile app that tracks your sleep and provides a smart alarm clock with a range of features, including a snore and sleep recorder, personal insights, and sleep aids. The app offers gentle wake-ups at the ideal time for your body and provides tailored advice based on your sleep patterns. It also includes calming sounds, guided meditations, and bedtime stories to help you fall asleep faster. Sleep Cycle is available on Google Play and the Apple App Store.
Pillow
Pillow is another popular sleep-tracking app that offers a free option with limited content. The premium version provides additional features such as audio recordings, sleep trends, heart rate and oxygen saturation tracking, sleep sounds, a nap mode, bedtime reminders, and personalized insights. Pillow is available on the Apple App Store.
Sleep Tracker
Sleep Tracker is a free app available on Google Play. It allows you to learn about your sleep patterns, check your snoring and dream talks, and customize your smart alarm to improve your sleep quality. The app also includes sleep-aid sounds and the ability to log your sleep notes and wake-up mood.
Calm
Calm is a sleep app that offers a free version with limited content and a premium membership. The app provides an extensive library of sleep sounds, meditations, and sleep stories to help you relax and fall asleep. Calm is available on the Apple App Store and Google Play.
Pokemon Sleep
Pokemon Sleep allows users to track their sleeping habits and learn about the sleep patterns of their favourite Pokemon characters. It connects with Pokemon Go Plus Plus and offers rewards for tracking your sleep. Pokemon Sleep is available for download on the Pokemon Go app.
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Wearable sleep tracking devices
Wearable sleep-tracking devices are a great way to monitor your sleep and gain insights into your overall health. These devices come in the form of rings, smartwatches, or wristbands and offer a range of features to help you understand and improve your sleep quality.
One popular option is the Oura Ring, which provides accurate sleep tracking and insights into other aspects of health, such as stress, menstrual cycles, and illness monitoring. The Oura Ring measures heart rate and heart rate variability (HRV) using infrared light beams, and its "Smart Sensing" technology can track vitals like blood oxygen saturation, breathing disturbances, and heart rate. The Oura Ring is lightweight, comfortable, and discreet, making it a convenient choice for daily wear.
Another option is the Whoop 4.0, which offers a combination of accuracy, user experience, and comfort. The Whoop 4.0 provides insightful, personalized recommendations based on your sleep data and is designed to be lightweight and comfortable for daily wear.
Smartwatches, such as the Apple Watch Series 9 and the Pixel Watch 3, are also capable sleep-tracking devices. These watches can track sleep stages (awake, REM, light, deep) and provide data on sleep trends, changes in sleep patterns, and sleeping heart rate. Additionally, the Pixel Watch offers a Sleep Score out of 100, giving you a quick overview of your sleep quality.
For Pokemon fans, the Pokemon Go Plus Plus device offers a unique way to track sleep. By connecting to Pokemon Go, users can earn rewards for tracking their sleep habits and also learn about the sleep habits of their favourite Pokemon.
In addition to these options, there are also sleep-tracking headbands, mattress sensors, and bedside devices available on the market, offering a variety of choices to suit different preferences and needs.
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Sleep tracking with Apple Watch
Sleep tracking is available on Apple Watch with watchOS 8 or later. To track your sleep, you must first enable the "Track Sleep with Apple Watch" setting. This can be done during setup if your Apple Watch is paired with your iPhone. If you pair your devices after setup, you can still turn on sleep tracking later.
To receive sleep data, you must wear your Apple Watch for at least one hour each night. If you don't wear your watch to sleep, your graph might not show any data. To get the most accurate results, ensure that your watch fits comfortably on your wrist. If your watch is too loose, the accelerometer may register too much movement during your natural sleep. You can also turn on Charging Reminders to ensure your watch has enough power to track your sleep.
Once you have worn your Apple Watch to bed, you can view your sleep data on the Health app on your iPhone or iPad. To do this, open the Health app and tap "Browse" at the bottom of the screen. Then, tap "Sleep". Here, you can view your sleep history for the past week, month, or six months. You can also see the time and percentage you spent awake or in REM, core, or deep sleep.
You can also view your recent sleep data directly on your Apple Watch. To do this, open the Sleep app on your watch, then turn the Digital Crown to view your Sleep Stages data, Time Asleep, and your Sleep Duration for the last 14 days. With Apple Watch Series 3 or later with watchOS 8, you can also measure and track your Respiratory Rate.
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Sleep tracking with Pokemon Go Plus Plus
Enabling Sleep Data:
- Open the Pokemon Go app and enter the Map View.
- Tap the Main Menu button, usually located in the bottom centre or top right corner of the screen.
- Access the Settings by tapping the gear icon in the top right corner.
- Under Settings, tap on "Connected Devices and Services."
- Select "Accessory Devices" and enable Sleep Data for your Pokemon Go Plus Plus device.
Initiating Sleep Tracking:
- Ensure your Pokemon Go Plus Plus is paired with the Pokemon Go app, but it doesn't need to be actively connected for gameplay.
- Before going to bed, start a sleep session by pressing and holding the Main Button on your Pokemon Go Plus Plus until the indicator light flashes blue, and you hear a lullaby.
- Place the device on your mattress near your pillow. The device must be lying flat to ensure accurate tracking.
- When you wake up, end the sleep session by holding the Main Button again until the indicator light flashes multicoloured lights.
- If the light turns red, it indicates that your sleep session was shorter than 90 minutes or the data was not recorded successfully.
Claiming Rewards:
- Open the Pokemon Go app and log in to claim your daily sleep rewards.
- You can adjust the time of day you wish to receive your sleep rewards in the settings.
- Additionally, you can connect your Pokemon Go Plus Plus to the Pokemon Sleep app to unlock special features, such as a nightcap-wearing Pikachu and bonus diamonds based on your total tracked sleep.
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Sleep tracking with a smart alarm clock
Here's how you can use a smart alarm clock for sleep tracking:
Set Up Your Device
Place your smart alarm clock device on your nightstand or nearby. Some smart alarm clocks, like Sleep Cycle, can also be used from your watch, providing convenience and flexibility.
Personalize Your Settings
Before bedtime, set a time period within which you would like to wake up, such as a 15-minute window from 7:00 am to 7:15 am. You can also customize your alarm sounds, choosing from a variety of gentle and pleasant options to ensure a calm and peaceful wake-up experience.
Track Your Sleep
Throughout the night, the smart alarm clock will monitor your sleep. It will track your movement and breathing, enabling it to estimate parameters such as sleep onset time, sleep depth, wakefulness, and breathing rate. This data will provide valuable insights into your sleep patterns and sleep quality.
Analyze Your Sleep Data
In the morning, review your sleep data to understand your sleep patterns. Many smart alarm clocks provide detailed reports, statistics, and even personalized tips to help you improve your sleep habits and overall sleep quality. For example, you can learn how external noises, caffeine intake, stress, or physical activities impact your rest.
Adjust Your Sleep Habits
Based on the insights gained from sleep tracking, make adjustments to your sleep habits and bedtime routine. Stick to a consistent sleep schedule, create a calming pre-sleep routine, and optimize your bedroom environment by keeping it dark, quiet, and cool, as recommended by Sleep Cycle. These changes will help you enhance your sleep quality and overall well-being.
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Frequently asked questions
Some free sleep-tracking apps include Sleep Tracker, Sleep Cycle, and Rise Science Sleep Tracker.
The Apple Watch, which comes with a Sleep app, is a free sleep-tracking device. The Pokemon Go Plus Plus device can also be used to track sleep for free.
Free sleep-tracking apps and devices often rely on measuring inactivity as a surrogate for estimating sleep. They don't directly measure sleep.

































