Does anyone else's DC do this in their sleep? It sounds horrendous, like she's really damaging her teeth - proper loud, grinding, clicking sound. I was hoping it would just be a phase but it's been on and off since DD (3.8) had any teeth to grind! Should I see about it? DP did take her to the dentist very recently and didn't think to mention it, but then the dentist didn't pick up on any damage either...