The slumber party for my Ava was a HUGE success! My suggestion for an eleven year old girly party is to limit the party to about 6 and I have a reason for that. You will always have a girl or two that will want to go home early! It always happens. So, then after pizza, prank calling boys, wii American Idol singing, more wii, cake, ice cream, and makeovers...you're down to 4 girls. That is the perfect number for a bedroom with sleeping bags, sleeping bag sledding down the stairs, and more wii Idol before crashing at 3AM! LOL...yes...I did say it was a success!