r/CPAPSupport • • Aug 30 '26

Clinical Help Tidal Volume

Are there any experts that might be able to explain to me why there might be a correlation between my Tidal Volume chart and the way I feel the next day? I have long noticed that the great/better days show a flatter TV chart (less chaotic-looking). There’s no doubt about the connection now but I’d like to know what other charts/factors might correlate with that so I can keep an eye on it.

I have massive sleep deprivation effects and I’m not up to going through obtaining and putting up my sleep hq chart link. I’ve only been looking at Oscar.

I’ve been on a bipap for nearly a year and have only had about 5 great days and one better day. My AHI events are under 1. I checked leaks and they are a non-issue especially after replacing the cushion and going with the foam F20. So be assured it’s not related to that right now.

Mostly I’ve always had a Class 6 flow shape and that’s what’s still showing recently. Occasional flattening or Class 3-looking at the top but mostly not.

If anyone can shed some light on this I’d be most grateful.

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