At my daughters school, sleepover parties are the done thing.
Not expensive or difficult to organize and in general they all get on really well but cor do they tire me out. Only 7 girls in her year, including her but you should see them squeezed into some of the teeny cottages round here. They've been known to sleep in the bath.
We all send spare clothes and gogs because they always end up muddy or soaked. No-one seems bothered about a bit of mud here, thank goodness
We've just sent out our invites .... counting down now.