Why do I have to go to sleep? What happens when you sleep? Where do animals sleep? What are dreams? These curious questions are explored through delightful illustrations, intriguing flaps and simple words. Ages: 3 Reviews There are no reviews yet. Be the first to review “Usborne Ages 5-6 | Ages 3-4^- Lift-The-Flap Very First Questions And Answers: What Is Sleep?” Cancel replyYour rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.