"Sleep is important. Sleep is powerful. Every night, amazing things happen inside your body!" You might be fast asleep, but Brainy doesn't get a wink of rest around here! Join Brainy on an adventure to understand why sleep is the secret to a stronger, smarter, and healthier you! With colorful illustrations, fun facts, and science, Brainy will tell you that bedtime isn't the end of the day. It's the start of something amazing!