Why am I not seeing my sleep stages in my Health app

To my knowledge, sleep stages was introduced in watchOS 9. The Apple Watch Series 3 does not support watchOS 9 (or watchOS 10 coming this Fall). You would need to update your model to the Series 4, or newer, to receive the latest updates which include sleep stages.

Hello standardbs,

Can you please confirm what Apple Watch you have? I believe you would need at least an Apple Watch Series 4 for the sleep stages. Please also make sure your iPhone and Apple Watch are updated to the most recent versions.

I hope this helps!

standardbs wrote:

I'm at WatchOS 8.7.1

That’s why you can’t see sleep stages. That feature requires WatchOS 9.x