A few months ago I was fitted for a CPAP. basically it's a Darth Vader mask that forces air through your sinuses while you sleep so you keep breathing.

Anyways, not all that air goes in your lungs. In fact, a lot of it goes in your esophagus. The side effect is about an hour of impressive farts when you get up. All dry, some lasting over a minute.

Disgusting for others, sure. But you get to feel that release, which is awesome.

I guess it's good if you have a fart fetish