From U2.com, here's the English translation of an interview Bono recently gave to a German journalist. It's mostly about his great admiration for The Rolling Stones, and Mick Jagger in particular. Bono admits that he did, in fact, fall asleep during a Stones show. It was because of jet lag, not because he was bored! Click here to read the interview.
(I fell asleep during Alice in Chains once, way back in the day. It wasn't jet lag. It was finals week.)