Be certain to try all possible CPAP masks, the sleep center should Let you try one after another. Different masks work for different people. Every type of mask has unique problems, so be sure to visit various forums and search for clues.

Also there is a dental appliance that pushes the lower jaw forward to open the airways. Look into that. If your insurance doesnt cover it you can buy an off-label "anti-snore" boil-and-bite device that does the same thing.