I, unfortunately, breath through my mouth at night due to a largely deviated septum. I need the full nose/mouth mask. It starts out good but when I move unconsciously to sleep on my side which is my favorite position the mask moves and blows air in my eyes then I wake up. Or my arm hits the hose and moves it and again, air in my eyes. Happens at least 5 times a night. Not only do I have the deviated septum but the doc says my uvula and tonsils/adenoids rest below the horizon in the rear of my throat which also makes me snore and stop breathing. Surgery is an option like I mentioned, I'm still debating.