I encouraged him to talk with his doctor. When he finally did (yeah -- it took a while), his doctor set him up w/a sleep study. Turns out he has sleep apnea (surprise to him; total no-brainer to me). Now, he uses a CPAP and we are BOTH much happier! Not only is it quieter but he has much, much more energy & is, consequently, happier (as am I!).
BTW -- this took a good bit of time. First, to convince him to see his doctor, then to follow through and get the study done. I spent a lot of time concerned for his health -- and told him so. Tried really hard not to nag and to avoid the "I told you so" when it turned out I was correct. The important thing is the outcome, not "winning".
He threw out a lot of objections -- but most of them were fear based. One by one, his doctor and I showed him it would be OK. And it is. Now, he wouldn't dream of sleeping without it.
hang in.
ETA: For those who are concerned about the noise of the CPAP, take a look at the various types of machines available. When my husband first looked at them on-line, he chose the cheapest one. I told him I get a vote on this also, since it's OUR bedroom and he wasn't the only one affected. I suggested a mid-priced model because it was quieter. Turns out, the device company our doctor & insurance company used also suggested the quieter model. We have crappy insurance -- but even our insurance company covered the device & replacement supplies at 100%. Yeah -- not the sexiest thing on the planet but then again, neither am I. ;) He doesn't put it on when he gets into bed; he puts it on when he's ready to go to sleep. Problem solved...