Struggling with CPAP issues

[Sleepster]

Looking at chin tucking I’m wondering if it’s something related. My mask fits fine when I go to sleep, still in ramp mode. But I find I get annoying leakage in the middle of the night when the pressure is raises.  And one of the things I’ve noticed is that the silicone part, between the rigid plastic and the foam, tends to become inflated by the pressure, causing the mask to become tighter. This not only cause leakage between the foam and my skin but also puts pressure on my jaw, pushing it back. 

If that’s the problem, I don’t know how to fix it. 

I’m already using the AirTouch F20. It’s much more comfortable than the silicone, but also much more expensive.

You'll have to try a different mask. It's pretty common for people to have to try several masks before finding one that works for them. Most insurance providers cover this expense. In fact, when the DME contracts with your insurance company to provide you with a CPAP machine, that includes fitting you with a mask. The mask has to fit!

[K2write]

I may need to go back, but I’m not sure what to ask for. 

The original F30 that I started with fit fine (before going to the EERS system). The problem I had with that was that after a few weeks, the silicone, even with a brand new cushion, got clammy against my skin. 

The EERS increases pressure in the mask so much that I wonder how any mask could fit properly without leaks at both the starting and peak pressures.