WELCOME! Glad you found us!!!
It took me 8 masks in 6 weeks until I could find one that I could sleep with all night every night. I ripped it off, I took nights off, did all the icky things one does in the early period of getting used to therapy.
One thing you might try is
http://www.pur-sleep.com This product is also sold on
http://www.cpap.com. Many newbies report this helped them relax and get more comfortable with their mask, and to keep it on for longer periods. Some folks here report they can actually see their AHI lowering when they use certain scents. I use it every night, just for the "nice" factor of having something pleasant to breathe. I have never correlated my data with the scents.
You might also look at your pillow, and see if that's a problem. I was sleeping on a memory foam pillow before therapy, so it was no problem to just scoot over to the edge and hang the mask and the front of my face off the edge so there was no impact there. If you are mashing your face into a pillow, you may be slipping the mask off, and causing leaks, which causes you to rip the mask off, even in your sleep.
Ripping the mask off while you sleep and having no memory for it is very common in the early stages until you get used to therapy.
Also, please tell us which model M Series you have - Plus, Pro, Auto? This makes a big difference. The Plus model will only give you very limited data - usage hours is about it. The Pro and the Auto models will give you detailed reports that you can read yourself at home, via the SmartCard and a card reader and some software on your computer. This data can help you pinpoint problem areas, and help you determine if changes you are making are helping or hurting.
Best of luck and WELCOME!!!!
Barbara