On the subject of Sleep/HOF etc I'm suprised nobody has mentioned Bongzilla. Also quite enjoyable even if you don't smoke weed.
The first time I heard sleep... funny enough it was the scene in Gummo when the two boy main charcters are riding down a hill on their bikes IIRC.
Matt P kicks ass... Met him in a friends tattoo shop when I was in highschool and he was helping sourpuss out with their tour.. We drank beer and talked about god. He has an interesting take on that nonsense.