How to stop snoring that is caused by drinking alcohol?...

...My mom asked me to post this question about my dad. He drinks a few beers at about 4 or 5 o'clock, eats dinner, then goes to bed because he has to wake up early in the morning for work. My mom gets barely any sleep because of his snoring. By the sounds of things, the doctor said its his drinking. Is there some kind of trick or homemade way to stop this? Please help, my mom gets no sleep and pretty soon she's going to have to move to the couch!!

"Don't drink alcohol Duh"
(chosen answer)