My DD turns 8 this autumn and she really wants a sleepover but I'm saying no - our sleep is already very disrupted by our toddler, we don't have space for the 4 friends she wants to all sleep, it's a mixed sex group, and I know a couple of them still need their mum to sit with them to go to sleep. So, no. But I've heard of a "sleepunder" where they all do sleepover things in their PJs and then get picked up late. Has anyone had one of these and can tell me whether it worked out? What sort of activities did they do? What sort of pickup time is appropriate? Did they all get hideously disregulated and wasn't worth it or was it fine??