Gina Johnson
Sleep tracking is a way to monitor sleep quality and duration, which can be an effective method to understand the links between lifestyle and health. Sleep as Android is a sleep-tracking app for Android devices that uses a method called actigraphy to estimate sleep phases and visualise how you sleep. The app will also provide feedback and wake you up at the right time. Sleep as Android uses motion tracking to figure out what phase of sleep you are in, and can be used with a smartwatch or a phone.
| Characteristics | Values |
|---|---|
| Sleep tracking method | Actigraphy |
| Sleep tracking data | Sleep duration, sleep quality, sleep hours, sleep stages, sleep score, sleep-lifestyle correlations |
| Sleep tracking devices | Phone, smartwatch |
| Sleep tracking sensors | Sonar, Accelerometer |
| Sleep tracking settings | Disable awake detection, adjust sensitivity, test sensors, frequency, volume |
| Additional features | Lullabies, sleep aid, smart wake-up, sleep graphs, simplified noise level graph, simplified sensor data graph, weather data, dismiss alarm |
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What You'll Learn
Sleep as Android uses actigraphy to track sleep
Sleep as Android is a sleep tracking app for Android devices. It uses a method called actigraphy to estimate your sleep phases. Actigraphy is the measurement of your movement during sleep, backed by scientific research showing comparable outputs to PSG (Polysomnography), the gold standard for clinical sleep tracking. Actigraphy is perfect for everyday use due to its simple setup, which involves using either the built-in accelerometer or microphone and speaker as a sonar.
Sleep as Android visualizes your sleep patterns, provides feedback, and wakes you up at the optimal time. The app offers a "Smart Wake Up" feature, allowing you to set a time range (e.g., 6:30 to 7:00) and uses actigraphy data to wake you up within that range at the best moment for a pleasant awakening. This feature can be used without sleep tracking the whole night by enabling Battery Saving Mode.
The result of sleep tracking with Sleep as Android is an actigraphic record of your sleep, presented as a sleep graph. This graph displays your sleep cycles, which typically progress from light sleep to deep sleep and occasionally into REM sleep, where dreaming occurs. During deep sleep, your muscle movements are suppressed, resulting in a flat line on the graph. Light sleep is characterized by more movement, manifesting as significant peaks in the graph.
To use Sleep as Android, you can enable sleep tracking on your phone or a compatible smartwatch. The app will then measure your movement using the selected sensor (accelerometer or sonar) and create a sleep graph for you to review in the morning. It is recommended to use the app with airplane mode enabled to reduce "electromagnetic smog" in your bedroom.
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How to set up and operate Sleep as Android
Sleep as Android is a smart alarm and sleep cycle tracker that wakes you up gently during the optimal moment for a pleasant morning. Unlike common alarm clocks, Sleep as Android does not wake you up based on a set time but instead tracks your sleep to determine when you are in light sleep, which is the natural time to wake up. This app is intended to improve general fitness and well-being, especially sleep.
To set up and operate Sleep as Android, you can follow these steps:
- Download the Sleep as Android app from Google Play Store.
- Open the app and grant the necessary permissions, such as access to your device's sensors and storage.
- Set up your profile: Create an account or log in with your existing account. Provide basic information such as your name, age, and sleep goals.
- Calibrate your device: Place your phone or smartwatch on the bedside table or under your pillow, depending on the instructions provided by the app.
- Set your alarm: Input the time you need to wake up, and the app will track your sleep cycles to wake you up at the optimal time.
- Understand the data: After each night's sleep, the app will provide detailed sleep analysis, including sleep duration, sleep phases, and any detected sleep talk or snoring.
- Customize your settings: Explore the app's features, such as the radio station alarm, background noise, and sleep aid sounds, to personalize your experience.
- Update the app regularly: Sleep as Android releases monthly updates with bug fixes and new features requested by users.
By following these steps, you can effectively set up and use Sleep as Android to track your sleep and improve your overall sleep quality.
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Sleep as Android compared to polysomnography
Polysomnography (PSG) is a diagnostic test that tracks and records the activity of multiple body systems, including the heart, brain, and respiratory system, to provide healthcare providers with a comprehensive view of an individual's sleep quality. It is considered the gold standard for clinical sleep monitoring. During a PSG, a patient spends a night in a laboratory, attempting to sleep as they normally would, with numerous electrodes attached to their body. The test records sleep phases (N1, N2, N3, REM, AWAKE) and is used to diagnose or rule out health issues related to sleep.
Sleep as Android is a smartphone application that aims to provide similar functionality to PSG by monitoring physical activity during sleep. The app uses actigraphy, or activity measurement through an accelerometer, to detect sleep cycles and phases. It can detect 30% of wake periods based solely on movement intensity and has a 96% chance of not ringing an alarm during the PSG-measured N3 deep sleep phase. The app also utilizes movement frequency, ambient light level, talk detection, and phone usage data to enhance its accuracy.
While Sleep as Android offers a convenient way to track sleep, it is important to note that it is not a direct replacement for PSG. A study comparing the Sleep Time app to PSG found that while the app had high sensitivity for detecting sleep and accuracy in sleep-wake detection, it performed poorly in reporting absolute sleep parameters and staging sleep. The app's accuracy may also be impacted by factors such as the user's sleep efficiency and the specific sleep stages experienced.
Furthermore, PSG is conducted in a controlled laboratory environment, which ensures consistent conditions and allows for the measurement of various physiological parameters through sensors and electrodes. In contrast, Sleep as Android relies solely on movement and phone usage data, which may be influenced by factors such as bed partners, pets, or unusual sleep positions.
In summary, while Sleep as Android provides valuable insights into sleep patterns and can be a useful tool for tracking sleep, it does not replace the comprehensive evaluation and diagnostic capabilities of polysomnography. PSG remains the gold standard for clinical sleep monitoring due to its ability to capture a wide range of physiological data and facilitate expert interpretation of sleep patterns.
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Sleep as Android's smart wake-up feature
Sleep as Android is a powerful sleep-tracking tool for Android devices. It uses a method called actigraphy, which is backed by scientific research, to measure your movement and recognise your sleep phases. The app visualises how you sleep and gives you feedback, allowing you to understand the links between your lifestyle and health.
To set up the smart wake-up feature, simply tap the plus icon in the top right corner of the app and input your desired alarm time. Confirm the time with the "SET" button, and then confirm the alarm with the "DONE" button. You can now see the alarm scheduled on the main screen. Tap the moon icon, and Sleep as Android will start tracking your sleep using your phone's sensor. Place your phone on your mattress near your body so that it can sense your movement and wake you up at the right time.
If you have issues with the smart wake-up feature, you can try troubleshooting by ensuring that no system restrictions are applied to the app. You can also increase the sensitivity of the smart wake-up feature in the app's settings. If you continue to experience problems, you can send a bug report to the developers by using the Left Menu → Support → Report a bug.
Additionally, the app has a Backup alarm feature to ensure that you wake up on time. You can limit snoozing and configure a CAPTCHA task to confirm that you are fully awake.
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Sleep as Android's sleep graphs
Sleep as Android is a powerful sleep-tracking tool for Android devices. It uses Actigraphy, which is activity-based sleep tracking, to estimate your sleep phases. The app visualizes how you sleep, gives you feedback, and wakes you up at the right time.
Sleep as Android uses motion to figure out what phase of sleep you are in. It can be used with a smartwatch or a smartphone. If you use a smartphone, you can place it in your bed to use the built-in accelerometer or on your bedside table to use the microphone and speaker as a sonar.
You can further edit your sleep graph in the Sleep as Android app. You can rate your sleep, add additional awake periods, cut excess time, and add tags or comments. You can also revert up to five changes made while editing a graph using the Undo banner. If there are too many awakenings falsely estimated on your graph, you can report a bug to Sleep as Android.
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Frequently asked questions
Sleep as Android is a sleep-tracking app for Android devices. It uses a method called actigraphy to measure your movement and sleep cycles, and it can be used with a smartwatch or phone.
Sleep as Android uses your smartphone's built-in accelerometer or microphone and speaker as a sonar to detect movement and visualise how you sleep. It also provides a Morning Briefing with important information at a glance.
To set up Sleep as Android, you need to go to Settings → Sleep tracking. You can then choose a sensor for motion tracking, such as Sonar or Accelerometer, and adjust the sensitivity for optimal results.
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