Totally feel everyone's pain. My DP snores too, AND grinds his teeth (I honestly don't know how he makes the noise he does but it goes through me like nails down a blackboard) AND he sleep-talks .... and all of this no matter what position he lies in. There are times in the middle of the night when I've cried with utter exhausted frustration, and others when it takes all my willpower not to stick a large carving knife between his shoulder blades because I feel so furious.
Yeah - separate rooms, if you have a separate room. Thankfully we have but that's not without its problems as he feels resentful at being "pushed out" because of course his "hurt" feelings are far more important than me actually getting any sleep, let alone undisturbed sleep isn't it. If we ever stay elsewhere, I truly dread having to share with him because I know I won't sleep - and have sometimes, at the very worst, laid there until 5 in the morning.
I don't bloody care that he's not doing it on purpose. So that's alright then. Like if I had some medical condition which made me belch and fart every 5 minutes that'd be alright too because I wasn't doing it deliberately. I've begged him to mention this to the GP when he goes on one of many relatively trivial missions but he "forgets" or there "wasn't time" or somesuch intelligence-insulting codswallop. Truth is the first thing the doctor would advise is for him to lose weight and stop smoking and the selfish sod doesn't want to do that, so would rather not be officially advised to do so.
As years go by I'm getting more and more resentful about this issue (you'd never have guessed would you) as he's never really tried to do anything about it other than trying nose strips (useless) and a gumshield for the grinding (didn't "like" it apparently). Then he has the temerity to get the hump because I ask him to leave my (our) bed. If he does stay, he can also get angry if I push/shove him in the (vain) hope that a change of position might give me a few minutes respite in which to get to sleep .... which all adds to the delightful and non-sleep-inducing ambience of course. Even then, I'm likely to be woken up a bit later by him making some sort of revolting noise. For my part I've tried all sorts of earplugs but nothing blocks out the sound completely, I've tried herbal sleep remedies, sleep/relaxing linen sprays, and going to bed before him (but unless I go hours before I find I just get anxious at not dropping off before he comes up). It's a miserable thing and it is sheer torture being physically prevented from sleeping when you so desperately need to do so.
I've also tried thrusting showing him all snoring/sleep apnoea articles as I find them, emphasising the health risks but what can you do with someone who isn't motivated enough by the health risks of smoking to try to stop that, let alone properly consider the health risks of this ? It really is so very very selfish and I'm sick of it.