I snore when I'm very tired and when I'm not in a very comfortable position. So if I fall asleep in, e.g. a car (as a passenger ;_

, I might start snoring. Usually me falling asleep in a car implied I was very tired to begin with.
Other than that, I'm a pretty light sleeper in that I'll wake up to anything. However, that won't get me out of the bed itself. I don't think I've waken up to my snoring, though I've waken up to other people's. Even though I'll wake up to hearing stuff, I can fall back asleep through it easily.
Jam it back in, in the dark.