Dr. Tony: I was not compliant with bipap therapy. I wasn't identified as a mouth breather right away. Ultimately, that revelation "ramped" my choices to full face masks. That didn't go over so swell, so I decided to investigate options. I went with a somnodent appliance. The subsequent sleep study revealed an improvement from moderate to mild apnea. What I want to know is this: if I were to wear my appliance as well as nasal pillows (bipap) could it address the mouth-breathing issues? I've had a health setback recently in that I was diagnosed with A Fib. Thanks