Important: This article applies only to sleep sessions that are detected automatically when you wear your Apple Watch during sleep.

This is an indication that Pillow doesn't have all the necessary permissions to access the Apple Health categories needed to perform sleep analysis. This can easily be fixed by following the instructions on this article:

Here's what to check to do make sure is properly configured to perform sleep analysis:

If re-analysis still doesn't produce the expected results:

a. Open Pillow on your iPhone

b. Tap on the Settings icon on the top right corner

c. Select "Setup" wizard

d. In the "Exclude Time" step, make sure you haven't excluded any time that you don't want to exclude

c. In the "Sleep session setup" step, make sure the setting "I usually go to be around" is set correctly.

d. In the "Time to sleep detection", don't turn on this switch if you usually spend a lot of time awake on the bed or sitting at the couch.

a. Open Pillow

b. Tap on the Settings icon on the top right corner

c. Go to Pillow A.I. > Select "Reset training"

Keep recording more sleep sessions as Pillow will try to re-adjust to your sleep patters

Sometimes the Apple Watch fails to send all required data to the iPhone. In this case Pillow won't have enough data to work with. To check if you have enough data:

a. Open the Apple Health app

b. Tap on the "Browse" tab > Health Categories > Activity > Active Energy

c. Scroll Down and tap on "Show all data"

d. Tap on the day that Pillow didn't analyse as expected > Check that you have enough data during the night. Apple Health should record values every 2-5 minutes.

e. Repeat step (d) for the "Heart rate" category.

If you have enough Apple Health data, please contact our support team to help you.