first thing, just have an unsleepover. kids come in pjs from like 5-9, and do everything they would at a regular sleepover. sleeping bags, popcorn and a movie, makes sundaes, ect. then the parents come back at 9 to get them just as they would be getting sleepy. its a nice way to appease the idea without issue.
now, wow, joe w is(not to sound demeaning) but out of her mind. what she is doing is putting the blame on the victims parents. to say look at the parents and decide if they are weirdos is very ignorant. most child molesters simply wait for an oppurtunity and then begin the manipulative grooming process. they know what to say to the parents and the child in order to gain everyones trust. check our megans law and see how many peoples MO is "to gain access to the child through friend or family member". to even suggest that we can simply talk to and look at someone to decide if they are a danger to our child is idiotic.
reference to joes statement, what about everyone else? would the parents allow relatives, boyfriends, neighbors, friends, co workers to come in to the residence when other children may be there? since these people are trusted by that parent, they would think nothing of it, but the bottom line is they are still strangers to you and your child. what about older children, are their friends or boyfriends going to show up? do you really know who may be around your child?
i agree completely with melanie. as parents, our job is to protect. the only sure fire way to protect is to not allow our children in situations where there could be a problem. as they get older, and can be told what is ok and whats not, hopefully you can give them power and the words to use if they were ever in such a situation, but at 5, the child has no way to get out of it and protect himself.
also, if you pick and choose, you are seriously going to insult a parent when they see that you are not opposed to sleepovers, just the ones they have. the same would hold true if you were the host, what to do when the invite is returned at their house. its just easier to say no all the way around.
besides all that, i still do feel 5 is extremely young for a child to be at a nonrelatives house overnight. you may having crying kids and wet beds at 4am