Hi,
I also had to have the sleep study because of my BMI and neck size. I do snore but don't have other symptoms of sleep apnea. The sleep study was annoying, but ok. They found 1 minor blip in my sleep pattern and the Dr. told me that if I wasn't scheduled for surgery, he would not have prescribed the CPAP mask because it was so minor, but since I was having surgery he set me up with the mask and made me go back in for a second sleep study while wearing the mask. That was annoying because I had a really hard time falling asleep wearing the mask. I had to bring the mask with me on my surgery day so they could put it on me while in recovery. I woke up from surgery and was pleased to see they never put the mask on me. The anesthesiologist said I was fine and didn't need it. My mask is in my closet now and will be going back to the company that it is rented from very soon! Best of luck to you. Hopefully you will be able to tolerate it better than me.
Christine