I usually have a stack of "fun" reading on my night stand. Currently, the stack includes The Piano Shop on the Left Bank (a re-read actually of a quirky book about living in Paris), and Daniel Silva's new book Portrait of a Spy (the latest in the Gabriel Allon series).
I often collect recommendations from colleagues, and a friend recently told me about a book recommendation website: Whichbook. You can select up to four different qualities in the book (happy v. sad, funny v. serious, easy v. demanding, etc.) The site then gives you recommendations, which include the title, an excerpt from the book and "similar" books. The Whichbook site has helped me move outside my reading comfort zone with some unexpected recommendations. Give it a try!