Thank you all very much for your replies, I have found them very helpful. I am sure I have a mask that is too big and as with Joan the top of the head gear is off the top of my head as well which I guess doesnt help the fitting. Joan would you please let me know how you get on with your new headgea...

I am wondering if anyone has had success with a full face mask when sleeping on their side. I need to wear a full face so nasal ones are not an option. My mask is a medium Mirage Quatro which I find often leaks when on side even with many adjustments. It is weird that I can occasionally get a decent...