> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/provider-coverage-and-per-provider-data-availability/apple-sleep-score-not-exposed-by-healthkit.md).

# Why is Apple Watch Sleep Score null?

**Apple's Sleep Score currently appears only on the watch/device and is not synced into Apple Health**, so it isn't readable through HealthKit and comes through as `null`. It's on-device-only display data, kept from third parties.

A few things worth knowing:

* Other providers differ. Garmin, for example, does include a sleep score in its sleep payloads.
* If Apple later exposes the score to Apple Health, support can be added.