My DH has had sleep apnea for many years, and I kept pushing and pushing him to get diagnosed and get the machine. He finally did 2 years ago (after me nagging & nagging!!), and his health has improved, as well as his MOOD!!! He was always so grumpy because he was always exhausted!!
He sleeps very soundly now, and the machine does not bother me at all. I am a sound sleeper.
If your DH has apnea and doesn't have a machine, get them to try it at least! You'll both be glad he did!!