He only snores when I'm in the bed?

We basically live in a studio apartment, so I'm in the room with him when he goes to sleep. The second I climb into the bed, he starts snoring!
I don't go to bed at the same time, so it's not like a certain time of the night. I don't always have the TV on, so it's not a change in sounds, he doesn't snore if he falls asleep in the chair, and he lays all over that thing like a damned cat in all sorts of positions!
Sometimes, he'll kinda start to snore, but it's while he's shifting so it stops almost immediately. He still kicks around in his sleep if I'm in the bed, so it's not like I'm keeping him still. And he'll start snoring, but then it will stop randomly when he hasn't moved at all, and he's still breathing, I know because I've watched him in frustration!
He only snores when I'm in the bed?
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