Two enchanting games of skill: This stacking game includes both a cooperative and competitive variation. Normally Penn, the little pea princess, doesn't like to go to bed. But today she is very tired. To make sure she gets a good night's sleep, Penny stacks a high tower of mattresses, down comforters and pillow on top of each other in her bed. It is very soft, but very wobbly. Who can help Penny stack everything on her bed, to get a good night's sleep?