See my prior post. UPPP (and all parts of UPPP) are really inadvisable. Find a sleep doctor who keeps up with the latest research. The *only* surgery a person should even consider is the advancement surgery, at least according to research I have done.
But, as far as CPAP goes: there was a big study that came out recently which confirmed what my cardiologist told me off-the-record. CPAP (and other positive airway devices) may reduce snoring, and reduce patient sleeplessness, they have no appreciable effect on any of the apnea-related issues, including cardiac issues.
Once again, find a doctor who really keeps up with this changing field. Many doctors will simply prescribe CPAP as a matter of course, but there is a real question as to whether this is really effective.
Go to the mask that covers nose AND mouth. Doesn’t matter if you’re a mouth breather that way.