NightOwl Companion

Name: NightOwl Companion
Availability: InStock
Rating: 4.741711139678955 (19357 reviews)
Author: Resmed

Resmed

4.7

19.4K reviews

100K+

Downloads

Everyone

About this app

This app allows you to interact with the NightOwl sensor that measures signals from your index finger with a small light sensor to check if you have sleep-related breathing disorders.

You can set up the test in a few minutes using the in-app instructional videos. Wear the sensor for the prescribed number of nights to complete the test.

Disclaimer: This app may provide information from external medical devices. Before making any medical decisions based on this information, read the device instructions carefully and speak with your healthcare provider.

Updated on

Apr 07, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties

Learn more about how developers declare sharing

This app may collect these data types

Location, Personal info and 3 others

Data is encrypted in transit

You can request that data be deleted

Ratings and reviews

4.7

19.1K reviews

Demetrios

March 23, 2026

It's very easy to follow the instructions and the device is comfortable on your finger, once you fall asleep you don't even notice it. You can follow the instructions on your daybreak device and once you hookup your device it'll tell you to download the app and sync it with Bluetooth, hope this helps someone else.

2 people found this review helpful

Cynthia Hintz

November 27, 2025

I had to take the test twice, but that was due to user error. I had it on too tight the first night, so I accidentally turned the sensor off. I did not tighten as much the second, and it worked! this was my second sleep study, as the first used a bulky machine and I was unable to sleep. NightOwl uses a small fingertip sensor that you can barely feel, so I was able to sleep this time!

21 people found this review helpful

L A

November 22, 2025

I did not find a place to put in the activation code. It still worked though but I spent time trying to find it. About 4 or 5 am it said my finger device wasn't positioned well. 5 hours later, and being awake I remember the paper instruction said just to redo it. At the time in the app, it said stop recording. I hit it thinking I needed to stop it to redo the finger device. Come to find out, I stopped it and couldn't restart it for the additional 4 hours of sleep. The app should give a warning.

4 people found this review helpful