Pillow requires an Apple Watch Series 6 or newer

The ability to track blood oxygen levels is only available on Apple Watch Series 6 or later. If you are using an earlier model, Pillow cannot retrieve or display any data for Blood Oxygen Levels.

Wear your Apple Watch during sleep

Pillow displays data for Blood Oxygen Levels for each sleep session. If you don't wear your Apple Watch during sleep, Pillow will not be able to retrieve any data for blood oxygen levels.

Check Apple Health Permissions

Pillow requires permission to access blood oxygen levels. To check if that permission is set up correctly:

Open the "Health App" on your iPhone.
Tap on your profile icon in the top right corner.
Go to "Privacy" > "Apps" > Pillow.
Turn ON "Blood Oxygen".

Enable blood oxygen levels tracking on the Apple Watch

Open the "Settings" app on your Apple Watch.
Go to "Blood Oxygen".
If your device and location meet the requirements, ensure the Apple Watch's system and firmware are up-to-date to access the required features.
Turn ON "Blood Oxygen Measurements", "In Sleep Focus", "In Cinema Mode".

Check feature availability in your region

The availability of blood oxygen measurement depends on your region. You can verify whether the feature is supported in your country using Apple’s official page: Apple Watch Feature Availability

Age restrictions

Apple does not provide blood oxygen measurements when the Apple Watch is set up for a user under 18 years old. In this case, Pillow will not be able to display any blood oxygen data.