NightOwl Companion

4.7
10.5K reviews
1L+
Downloads
Content rating
Everyone
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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
11 Apr 2025

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
10.3K reviews
Sharon Terry
1 March 2025
I used the NightOwl device for sleep study last night. It was comfortable & easy to use. It's so small that I can't believe it will be effective! The app is easy to follow along with for set up & removal. The instructions didn't say that I didn't need to turn off the device, but it was easy to Google that question. The device is automatically turned off when you enter the info that you are awake.
11 people found this review helpful
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Carolyn Megathlin
29 January 2025
My experience with the NightOwl app has been very frustrating. I very carefully followed the instructions. After much hassle, my NP was informed that not enough information was gather by the app for analysis. There's not enough room to go into everything. I have to do another round with this thing. I can't go to the sleep lab, which would be preferable at this point, but insurance won't cover it unless I've had a stroke in the past year.
7 people found this review helpful
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Adrian Hunt-Davies
9 January 2025
Not a good app for uploading sleep data. I have been using the app for a week while trying to complete a four-day sleep study. The device connects through the app each night, but in the morning, it fails to upload on most occasions. The only way to stop the upload attempts is to remove and reinstall the app, and then redo the sleep study. It is a very easy app to navigate. This is why I have given it two stars. I reached out to NightOwl; I received a basic reply that it could be my connection.
10 people found this review helpful
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What's new

Enjoy our updated design.
Introduction: Easily follow key steps to complete your home sleep apnea test with NightOwl.
Terms of Use: Check our new NightOwl app Terms of Use.
Dashboard: Access everything you need-start tests, view notifications, and update your profile in one place.
Test Progress: Track your test progress effectively.
Notifications: Stay informed with important alerts.
Profile: Update your profile, access settings, seek support, and review consent documents all in one location.