8yo DD has been to a few sleepover parties before - I've known the parents well enough to chat to if I meet them at a school fete or similar. I've dropped DD off at their houses for afternoon tea type parties, and had no worries about DD going to a sleepover at their house (worried more about the parents surviving the ordeal to be honest!
). A sleepover seemed like a natural progression as they got older.
Now DD has been invited to a sleepover party, along with a few other girls. She is desperate to go. The thing is I don't really know the mum, have never chatted to her at school (DD is in before and after school club, so I don't see other parents that much, but there are quite a few parents I'm on polite chatting terms with if I do bump into them). I also don't really know the other girls or their parents who've been invited.
For no obvious reason I'm really uncomfortable about letting DD go on this sleepover. DH doesn't see the issue.