Oh, to be a kid again. This Friday the Shedd Aquarium is hosting Asleep With the Fishes, an overnight event in which kids and their parents are invited to bring sleeping bags and pillows for a night of roaming the museum to experience life on the coral reef. The cost is $50, but it includes all activities including a special marine mammals presentation, dinner, bedtime snack, continental breakfast and parking. A quick look at their website shows the event is sold-out.