Open the doors in this sweet and simple bedtime story to see which of Bear's friends can't sleep! Knock! Knock! Who's that? Let's open the door and see. . . . Bear is getting ready for bed. He's had a snack, brushed his teeth, and put on his big bear pajamas when-Knock! Knock!-someone is at the door. It's Mouse! She can't sleep because she's hungry. Then Crocodile arrives and her toothbrush is broken, and, uh-oh, Lion's pajamas are too small, and wide-awake Owl isn't sleepy at all! Can Bear help his friends so they can all get a good night's sleep?