Aids to Stop Snoring – How to prevent snoring

My boyfriend has been complaining about waking up in the middle of the night a various times not being able to breath. He wakes up gasping for air. I’ve only witnessed this once and it made me jump and scared me half to death. He’s not overweight, in fact he’s in very good physical health. He used to smoke and maybe does every now and then. A while back he was complaining about his chest hurting (I thought it was his heart) but he doesn’t really talk about that anymore. It still scared me. He doesn’t really think it is anything serious but i’m not so sure. I know that some sleep apnea requires snoring but he doesn’t even snore, he just stops breathing all together. It’s really scary.
Help? Advice?

He should see a doctor. There are over 90 different sleep disorders. Sleep apnea being the most common.