Not only is sleeping naked more comfortable, but it's good for your health too. Increasing your level of comfort makes it easier for you to relax and sleep, so you get a better night's kip. The resulting deeper, longer sleep makes it easier for your body to regenerate and repair itself, and build up your energy for the day ahead.Link (via Digg)
If you sleep with a partner, being naked heightens the level of intimacy between you and you are likely to have sex more often. You may also feel closer to your partner as a result of sleeping naked with them.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.