Dead to the world

On my flight to LGA yesterday, the guy in front of me was snoring louder than I've ever heard a person snore on an airplane. This guy was in full-blown mouth-open-will-brown death-rattle snoring mode to the point that it was funny to most of the passengers in first class, for about 2 minutes. After that it was just annoying. He was in the seat right in front of me and I tried to "accidentally" bump the seat back just enough to wake the guy up. Nothing doing. The guy was dead to the world. For the entire flight.