Maybe it's the hookup-type music playing during Block 4, the "u up?" block. Maybe the dancers are getting a second wind. Maybe it's the literal steam collecting above the mass of people in the tent. But again, sex won out, and it even strengthened its lead. Not all the dancers were up for some morning sex, though: One asked for the ever-requested third option of sleep.
Others, though, felt confident, including the dancer who sought me out to let me know that he'd pick sex over a shower. Let's see if that changes after the morning run around Norris coming up at the end of Block 4.