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How are you measuring O2 levels?

I’ve also been experimenting with a slightly elevated mattress recently, it seems to help quite a lot for my OSA.

I've gotten a full bed foam wedge in the past. I can't find the original one I bought before but I think the below is similar. Its much better than a short wedge pillow if you are a side sleeper. The only problem is initially you will slide down slowly but it gets better over time. I used it for a different reason because I used to get GERD issues in the past and elevation would help a lot.

https://www.amazon.com/stores/page/20D27239-CBE7-4150-BEA7-A...

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