Medical
NightOwl Companion
NightOwl Companion guides prescribed overnight tests using a compatible finger-worn light sensor.
Use only with the prescribed sensor and care pathway
Instructional videos help set up the required test nights.
Keep in mind: The app alone cannot perform the sensor test or establish a diagnosis; discuss results with the responsible provider.
Inside the app
Official product images
What you can do
- Watch test setup instructions
- Connect with the NightOwl sensor
- Complete the prescribed overnight testing period
Good for
- Patients assigned a NightOwl test
Consider alternatives for
- Users seeking an independent phone-only sleep diagnosis
Limitations & considerations
- Captured minimum: iOS 16.2.
- The app alone cannot perform the sensor test or establish a diagnosis; discuss results with the responsible provider.
Privacy & permissions
Sleep and medical-device information is sensitive; verify the intended care team.
Sources & review notes Updated Nov 10, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- US App Store developer description
Complete description, download price and compatibility metadata captured 2026-11-02.
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