People that snore in the sleep room are inconsiderate @$$holes! 'Nuff Said!
Did you ever consider this dude may have a medical problem and not even know it? Perhaps politely awaken him and say "Dude, you were snoring and even gasping for air in you sleep. You might wanna see a doc about that". Snoring is a precursor to sleep apnea.
But I do agree, snoring is horrendous to attempt to sleep with....