For my mothers 60th birthday party, she invited 5 friends to do a sleepover at a local  hotel, they all met for dinner and then went to the room and changed into PJ's and had contests for the sexiest, funniest (mom dressed in an old pair of flannels and put her hair up in old fashioned curlers), they did one anothers nails and pedicures and  snacked on munchies and went swimming at midnight.  The next morning did breakfast and those that wanted went for spa treatments...