I also think I read something about not having enough room under a mask for the carbon dioxide to build up appropriately...I was wondering if that's why I felt so bad on just the Eson nasal mask? It's the only one that doesn't leak if I cinch it a little tighter than I would like, but then there's h...

Thanks for your responses. I have to order the Eson and then I can get the oximetry test. I can go through a service provider, or order one online if it's cheaper (have to meet deductible before insurance pays)...any suggestions on best place to order from or is it cheaper from a service provider?

O2 is actually effective if all you have is central sleep apnea, since that operates differently than obstructive. However, now that I've reverted to complex (central + obstructive = complex), it doesn't work alone anymore. I may require both, but at least I have to use the auto sv again. But since ...

Also wondering if you should see a pulmonologist?

I went from complex sleep apnea, to central, back to complex. I've always had trouble with masks so the O2 alone was a relief, until I went back to complex. I was on just oxygen for 2 years.The only mask that seems to not leak on me currently is the new Fisher & Paykel Eson nasal mask. But when I tr...