Sara sans "h"

1. Speed bumps are also referred to as "sleeping policemen." I found this while trying to figure out what you call the little circular or rectangular reflector things they put on the roads in Las Vegas (I'm sure they use them elsewhere, but Vegas is just where I remember from when I was a child) that were kind of bumpy, but never figured out what those are actually called. I shall continue to call them do-hickeys. If you know what they are called, please tell me.