Google Pixel Watch (1st gen) Stopped tracking detailed sleep?

[salodjo2]

As said in the title, my watch randomly stopped tracking the sleep stages and instead just the duration of the sleep. This also means the daily readiness score no longer works. I look at these pretty often and was hoping there's a fix that I'm unaware of? Let me know if I'm the only one that has this problem.

[alexthecat]

@salodjo2 are you still getting heart rate data and are you sleeping more than 3 hours per night? Both of those are needed for detailed sleep tracking. 

If you aren't getting consistent heart rate data, check that the green light on the back of your Pixel Watch is on. I've experienced an issue where that light randomly turns off. Restarting the Watch fixed that for me.