I just got a book at the Goodwill Bins, called '21 Steps to Happiness' it's fiction, by F. G. Gerson.
It was an impulse grab but I always try to get books at the bins when I go, I've found a TON of awesome children's books in great condition (I collect children's things, because I want tons of kids, lol.)
My only middle of the night options are reading or the computer. My comp is very old and temperamental. So, I ended up purchasing a couple books by John Green and several in the 'Ender' series;and I'm in the midst of re-reading 'Mockingjay' as a refresher before the movie comes out.