I was reading in another group that some parents just don't allow them. In fact just about everyone who replied didn't allow sleepovers. We do, but only if we know the family of the other child pretty good so I'm starting to think I'm weird or something or if there's some sort of anti-sleepover bandwagon I somehow missed?
Side note: My kids are elementary school age. Both of them started having sleepovers about first grade or so. I can understand not allowing them when your kids are younger.