Sleepy?

Thought I'd run into Hiyoshi to do some shopping, on the short train ride in I saw a HS boy falling asleep standing up! He was holding on to the bar next to the door, then he would sway, and rock and his head bumping into the wall would bring him around for just a second, then he was nodding off again, knees buckling, swaying back and forth. Funniest thing therd was an open seat behind him.