Colin Snow
Sleep as Android is a sleep-tracking app that uses sonar to monitor your sleep without requiring any hardware other than your smartphone. The app emits ultrasound at a frequency of around 20 kHz, which is safe for human hearing and will not disturb animals. The app can be downloaded from the Play Store, and users can select sonar as their preferred method of sleep tracking in the settings. Sleep as Android uses your phone to track your sleep by emitting sound waves and tracking your movement, allowing you to monitor your sleep without needing to have your phone in your bed.
| Characteristics | Values |
|---|---|
| Purpose | Monitor sleep without having to place a device in your bed |
| Mechanism | Emits sound on the edge of audible and inaudible sound (around 20 kHz) to track body movement |
| Safety | Frequency is safe for human hearing; volume is around 50 dB, lower than a normal conversation |
| Compatibility | Works with some Android phones, including Pixel 2 XL and Doogee X5-max-pro; does not work with headphones |
| Features | Apnea alarm to wake you up when you stop breathing; smart alarm that doesn't turn off until you perform specific tasks |
| Cost | $6, or free with ads and usage limits |
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$1399.99
What You'll Learn
Sleep as Android uses sonar to track your sleep without any hardware
Sleep as Android is a sleep-tracking app that uses sonar to monitor your sleep without the need for any additional hardware. The app uses your phone's speaker and microphone to emit an ultrasonic signal and sense movement in your surroundings. This means you can place your phone on a nightstand and go to sleep without having to worry about any cables or devices in your bed.
To use Sleep as Android with sonar, first, download the app from the Play Store. Then, go to Settings > Sleep tracking > Sensor and select Sonar. Let the app test your phone to ensure that sonar works with your device. You can then start sleep tracking by tapping on the moon button on the main screen of the app.
Sleep as Android's sonar technology emits sound on the edge of the audible and inaudible range (around 18-22 kHz), which is perfectly safe for human hearing. The volume of the sound is comparable to a pin falling to the ground from one meter away or the sound of a refrigerator. This means you can use Sleep as Android with sonar without disturbing your sleep or the sleep of those around you.
The sonar feature in Sleep as Android offers a revolutionary way to track your sleep without any hardware. It provides a convenient and contact-less solution for those interested in monitoring their sleep patterns and breathing. By using your phone's existing hardware, Sleep as Android with sonar eliminates the need for additional devices or uncomfortable setups in your bed.
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Sonar works by emitting ultrasound from your phone
Sleep as Android is an app that uses sonar technology to track your sleep. To use this app, you need to download it from the Play Store and set it up to use sonar. This involves going to Settings > Sleep Tracking > Sensor and selecting Sonar. The app will then test your phone to make sure sonar works with it. Once you've done this, you can start sleep tracking by tapping the moon button on the main screen of the app.
The Sleep as Android app uses your phone as a sonar device to contactlessly track your sleep. It does this by emitting sound waves and interpreting the echoes that are reflected back. By measuring the time it takes for the echoes to return, the app can calculate the distance to objects and track your body movement during sleep. This is similar to how sonar is used in marine navigation and fishing to detect underwater objects.
It's important to note that the effectiveness of Sleep as Android's sonar technology depends on proper positioning. If something comes between you and your phone or if the phone isn't at the right height, the app may have difficulty detecting your movement. Additionally, sonar won't work with headphones, so you can't listen to lullabies privately before sleeping.
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Sonar can detect breathing disorders and sleep apnea
Sleep as Android is a sleep-tracking app that uses sonar to monitor your sleep without requiring any hardware other than your smartphone. The app can be downloaded from the Play Store. To use the sonar feature, go to Settings > Sleep tracking > Sensor and select Sonar. The app will then test your phone to see if it can support the feature.
Sonar emits sound on the edge of the audible and inaudible range (around 20 kHz) at a volume of around 50 dB, which is less than the volume of a normal conversation. The app then uses novel proprietary algorithms to identify sleep stages and detect sleep disordered breathing (SDB) patterns. The technology has been shown to have a sensitivity of 94% and a specificity of 97% for a clinical threshold for the Apnea Hypopnea Index (AHI) of 15 events/hour.
Sleep as Android will show you in the morning how many times you have stopped breathing throughout the night. The blue numbers on the graph indicate the maximum and minimum of your breathing rate. You can also set up an apnea alarm to wake you up when you stop breathing.
Sonar-based sleep tracking apps such as Sleep as Android and SleepScore can be useful for detecting breathing disorders and sleep apnea, which is a common medical disorder affecting over 18 million American adults. Sleep apnea is linked to several serious health conditions, including high blood pressure, diabetes, and heart attack. Diagnosing sleep apnea usually requires an expensive and time-consuming polysomnography test, but sonar technology offers a more convenient and affordable solution.
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Sonar is compatible with most Android phones
Sleep as Android is a sleep-tracking app that uses sonar to monitor your sleep. It does this by emitting sound on the edge of the audible and inaudible spectrum (around 20 kHz) through your smartphone's speaker. The frequency is safe for human hearing and is no louder than the volume of a normal conversation.
Additionally, if you are using a newer version of Android (Android 11 or above), you may need to grant certain permissions for the app to function properly. Go to System Settings > Apps > Sleep > Appear on Top / Display over other apps to ensure the app has permission to access the microphone in the background.
It is worth noting that while Sleep as Android is compatible with most Android phones, the effectiveness of its sonar technology depends on proper positioning. The phone should be placed on a nightstand or a similar surface near your bed. If something comes between you and your phone or if the phone is too far away, the app may have difficulty detecting your movement.
To set up Sleep as Android with sonar, follow these steps:
- Download the Sleep as Android app from the Play Store.
- Go to Settings > Sleep Tracking > Sensor and select Sonar.
- Start sleep tracking by tapping the moon button on the main screen.
- Place your phone on a nightstand or a similar surface near your bed.
- Ensure there is a clear line of sight between you and the phone, with no obstacles in between.
- You can adjust the sonar properties, such as frequency and sensitivity, by going to the Sonar Testing screen in the app.
By following these steps, you can use Sleep as Android with sonar on most compatible Android devices to track your sleep without the need for additional hardware.
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Sonar settings can be adjusted to minimise noise
Sleep as Android is a sleep-tracking app that uses sonar to monitor your sleep without requiring any hardware other than your smartphone. It emits ultrasound at a frequency of around 20 kHz, which is at the boundary of human-audible frequencies. The volume of the sound is around 50 dB, which is less than the volume of a normal conversation.
To adjust the volume, go to Settings > Sleep Tracking > Test Sensor. If you hear the sound, turn down the volume bar provided or select a higher or individual frequency. You can also try changing the input to "UNPROCESSED" by going to Settings > Sleep Noise Recording > Input/Output.
If you are experiencing noise in your recordings, try adjusting the position of your phone. Ensure that nothing is between you and your phone and that the phone is at the correct height. The noise may be caused by the sonar bouncing off a tabletop and re-entering the microphone, creating an echo.
You can also try to adjust the sensitivity of each type of setting to get optimal results. In most cases, too many awake periods are caused by significant HR peaks. If you are unsure where these awake periods are coming from, you can report a bug and send the application log.
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Frequently asked questions
Download the Sleep as Android app from the Play Store. Go to Settings > Sleep Tracking > Sensor and select Sonar. Then, test your phone's sonar functionality by tapping on the moon button on the main screen.
The blue numbers indicate the maximum and minimum of your breathing rate throughout the night.
The sonar emits a sound that is on the edge of the audible and inaudible range (around 18-20 kHz). The volume is around 50 dB, which is less than the volume of a normal conversation.
