Where do I fill in my equipment profile details?

I put my full mask gear on, go to bed, go to sleep, and then in the middle of the night find the thing laying on the bed next to me. No remembrance whatsoever of the mask coming off. Help? Suggestions?

I have been trying to use my machine since March 2013, I have used various masks and am now cursed with the full face mask. I cannot, no matter what I do, get used to it. I cannot sleep on my back and I am unable to sleep on my side without disturbing the mask. There are nights where I unknowingly r...