Sleep² Sleeptracker & Analysis

sleep² is a Productivity & Business tool that tracks sleep and analyzes sleep patterns. It helps users overcome sleep problems and improve recovery with a scientifically proven app.

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At a glance

Pricing

—

Free tier

API

Skill level

Non-technical

About

What is sleep² sleeptracker & analysis?

sleep² is a scientifically-backed mobile application designed to track sleep, analyze sleep patterns, and provide training to overcome sleep problems. Developed as a spin-off from the University of Salzburg, it leverages validated sleep research and certified medical products. The app works by connecting with Polar Verity Sense armbands or Polar H10 chest straps to collect detailed sleep data. Users can also import sleep data from Apple Health or Google Health Connect, though the most accurate analysis is achieved with Polar sensors. It offers features like automatic sleep measurement, battery status monitoring for sensors, and the ability to operate in offline mode. The app aims to improve sleep quality and overall recovery.

Best used for

Ideal for individuals who need to track their sleep patterns, analyze sleep quality, and receive scientific training to overcome sleep problems. Especially valuable for those seeking to improve overall recovery and integrate sleep data with other health platforms.

Common actions

track sleep

analyze sleep

improve sleep

overcome sleep problems

monitor recovery

Androidmobile_app

Capabilities

Key features

Sleep tracking
Sleep analysis
Sleep training
Polar sensor integration
Apple Health import/export
Google Health import/export
Offline mode

Target Audience

individuals with sleep issuesathleteshealth-conscious individualsresearchers

Integrations

apple-healthgoogle-fit

Pricing & Plans

unknown

Free

FAQs

Which sensors are compatible with sleep² and where can I purchase them?

sleep² works with Polar Verity Sense armbands and Polar H10 chest straps. You can order these sensors directly through the app with a 10% discount via "Settings → Automatic sleep measurement → Buy sensor." Data from other wearables can be imported via Apple Health or Google Health Connect, but these provide pre-processed data, not raw data for sleep²'s algorithm.

How do I connect my Polar sensor to sleep²?

Connect your sensor via "More" → "Automatic sleep measurement" or the "Go to sleep" icon. Ensure your sensor is on (Verity Sense) or has skin contact (H10) and Bluetooth is active. Do not connect the sensor directly through smartphone settings or other apps like Polar Flow. Location services may need to be enabled for Bluetooth to find the sensor.

Can I use sleep² in offline mode with my Polar sensor?

Yes, sleep² supports full offline sleep recording. Before going to sleep or waking up, activate airplane mode (no Wi-Fi, no mobile data) but ensure Bluetooth is on. In the morning, the app will prompt you to save data offline. Once online, you can analyze the sleep data from your diary entry.

How can I import and export sleep data with Apple Health or Google Fit?

To import, go to "More" → "Automatic sleep measurement" → "Apple / Google Health" and activate the import buttons. For export, if using a Polar sensor, activate data export in the same section. This allows your analyzed sleep results to be automatically written to Apple Health/Google Fit after each night.

What should I do if I experience pairing issues with my sensor?

Ensure your sensor is on, has skin contact (H10), and Bluetooth is active. Try activating location services. Avoid connecting the sensor directly in smartphone settings. Deactivating other Bluetooth devices or restarting the app and sensor can also help. For persistent issues, try unpairing and re-pairing the sensor exclusively through the sleep² app.

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