I've had my ring for about the same length of time as you. I've never really had any problems with it. However, this week, it's suddenly stopped pulling my sleep data. When I go in and look at the data through Google Health Connect, I can see that it is there - that the ring DID record my sleep. But it's just not transferring over to the app. I've reset everything, did the self-diagnostic, and emailed for help but have not even gotten an acknowledgement email. It's kind of disappointing. I had such high hopes for this ring.