It's dd1's 9th birthday in September and she really wants a sleepover. My niece is going to be staying the weekend of her birthday and I know a couple of friends will be allowed to come as they have stayed over before, but she wants to invite a few girls from school and I don't want dd to be disappointed if none of them are allowed to come.
I'm thinking maybe I should put a note in with the invitation offering parents the choice to pick them up at about 9pm if they are not comfortable with them staying the night.