Related: sleep apnea is incredibly common and underdiagnosed, and strongly related to dental health and bruxism:

https://news.ycombinator.com/item?id=23435964

The sleep test is definitely worth doing. However keep in mind that if they say you don't have it, then it doesn't mean you won't.

To find out why, see the "Jaws" book I mentioned in that thread.

Anecdote: I told my neighbor she had sleep apnea. She got a sleep test from Kaiser, and Kaiser told her she didn't have it. Two years later, her dentist recommended the mouth guard for bruxism.

Neither the dentist or Kaiser seem to understand that sleep apnea and bruxism are related. But it's obvious to me that she went untreated for 2 years and the symptom became worse.