Ok, riddle me this, Batman: Jack says he doesn't sleep-- and it has certainly become fanon that he doesn't sleep-- so just WTF was he doing when he had that dream about his men in Lahore in 1909? That, to me, looked a lot like sleeping. If he was just 'remembering,' he would have done his 'I'm sitting at my desk looking distant and pensive' thing.

Personally, I tend to think that he *can* sleep, he just doesn't do very much of it. I mean, if I were immortal, I'd *cling* to sleep as a means of keeping my sanity over the millions and millions and millions of days I'd have to be alive.