They don't do any of those things (at least not for me; there's a sibling reply where someone was harassed for non-compliance). If I don't use the device, no on

They don't do any of those things (at least not for me; there's a sibling reply where someone was harassed for non-compliance). If I don't use the device, no one contacts me. I lost power a few times and couldn't use it; I pulled a couple all-nighters over the years; I left it behind on a weekend trip once; I had a stretch of sleeping problems where I didn't sleep more than a couple hours a night for a week; I adjusted the device outside the doctor's parameters; I had innumerable problems with poor mask fit/leaks. All these metrics were broadcast by the CPAP, and all would have been a concern of my doctor, but it's got nothing to do with patient health. This is all about gathering evidence to deny future care, whether it be new equipment or coverage for more extreme situations related to non-compliance.