I'd probably be planning the deaths of those who'd rag on me for not ever needing it.
(To explain: When I was in college, I took a science fiction in literature course which introduced me to a book called "Beggars In Spain". To sum up, it deals in a world where there are people who need never sleep, and thus do not use a bed for anything and are generally more productive. Because of this, many normal people feel threatened by them. They're different and they have more productive hours due to the genetic tweeking. Suffice to say, it was a form of mass hate and racism, and I believe I would have to kill to make a point. You've gotta sleep some time...)