Thanks for the suggestions! Some of the items look promising. I have a sound machine, but I have to turn it up too loud to drown out his snoring. I suspect he has a deviated septum, but he doesn't want to have surgery-can't say I blame him. He seems to snore any time he is sleeping.
All 3 of us start out sleeping together, but around 2:00 am I have to leave to get some sleep. I will let you know what I find.