I woke up at 3:30 am, and that was mostly that. I lay there for a while wishing for sleep whilst driving my brain at about 45 mph, then I finally gave up. I read in the tub for a while, once further sleep was determined to be an impossibility, so that was good.
I did get to lie back down for a half-hour after toweling off. Had a weirdly vivid dream about my dad desperately struggling to find a phone number in this little plastic-box directory thing he had with buttons on the top that you pressed so it would open to the right place in the alphabetized cards. I struggled with the thing for a long frustrating time in my dream, but it wouldn't open.
The thing was a plastic box like you see for index cards or something with no obvious mechanism for selecting particular cards. I think that was part of the frustration of the dream -- not only did it refuse to open, but it clearly could not possibly perform the functions implied by the stupid buttons. And it had a smoked transparent top so you could sorta see the stuff that you could not get access to. Probably a parable in there somewhere.