Library Activities & Special Events - sleepover?

With life's typical unfurling style despite the months' advance notice of my obligation to present a library event, with seven days to go I have still not decided what to present. Leave aside that I don't work in a library so will be presenting on a theoretical event, the wealth of ideas (eg one list and another[book week]) is just too distracting to make a decision.

I like the idea of a sleep-over for older children ( Gracie Woodard claims it helps the library staff bond with the community:

• Most impressive was Julie Page's Girl Scout book badge earner: with its heavy theme on book preservation.
• Locked in the library - Apparently the Town of Newington library has one annually for children ages 6-12. Children bring their own sleeping bags, pillows and parent/caregiver. They sing karaoke, make crafts, hear bedtime stories, eat snacks and have breakfast in the morning.
• A halloween sleepover at Enfield featured a spooky campfire, special candles and ghost stories.
• Joy Hanchett of Southern Adirondack Library System found the American girls sleepover book and Statewide Summer Reading Program manual useful in filling out her library campout night.
• As an unschooler I'm not convinced of the value of using a sleepover as a prize/enticement for reading volume such as a Robert W Rowe Public Library although I'd like to know more from their perspective, and what happened at the sleepover.
• At Northland Public Library they had a family sleepover - I'd love to know more about it and their other Library Week activities: customer appreciation contest, a read-a-thon, book nook discounts, and special adult and children's programs. They also have regular teen movie nights, and game nights.
  
• Not sure that this would transfer to a public library, but Bement School's sleepover sounds like it was fun (elements: movies, pizza, facials [it was all girls] and a conga line]). I wonder what other items were auctioned at the Spring Fling and were "the Jacksons" the parents who won the sleepover at auction?