At some point in every child's life their parent warns them to stop jumping on their bed. But why? What will happen if you do? In this rambunctious story, Walter ignores his father and jumps higher and higher on his bed, until his hair brushes the ceiling . . . and Walter crashes through the floor! Re-illustrated for the 25th anniversary, this book is perfect for the next generation to learn exactly why they shouldn't be jumping on their beds.