Apple Watch suddenly stopped tracking sleep data

I recently purchased an Apple Watch SE 2, very happy with it, it has every function that I would want! Just two days ago it stopped tracking my sleep, and I didn't thinker with any settings, everything was already set by default and it tracked my sleep perfectly for two weeks straight. I did lots of troubleshooting fixes, restarted both iphone and the watch, checked every setting, sleep schedule is set normally, every single thing is set as it should be.

I'm out of the options and I'm sad it doesn't work since I just got the device, it's brand new. nothing happened to it, I'm taking good care of my tech.

Thank you for any suggestions!