12 nine year olds--- our first time hosting a sleepover....12:15...still lots of shrieking--
Do they ever go to sleep?

Bless you heart, that's alot!
I would draw the line at midnight playing that kind of game and all that noise.

I'm not "mean" (quotes because I don't think you are for declaring a bedtime, either) but I am sneaky. When DS has a sleepover I set all the clocks in the house ahead to different times - so they don't know which one is real, and they they think they stayed up later than they did.

They really should be called a "Stay Up All Nightover". That is kind of the point. We always had those "sleep" overs in the basement so the kids could stay up all night and we could sleep.