Epic. Sleep's Dopesmoker is one of the heaviest, most powerful pieces of stoner / doom metal to ever be recorded. The intense hour-long song is a journey through sound like no other. It's as if they took the most potent aspects of early Black Sabbath and stretched it out, like a thunderous drone, over the course of three sides of wax. Here is the groundbreaking cut in its entirety plus additional live material from 1994 and 1992, respectively.