This vintage hardcover has light shelf wear on the corners/edges, a price written on the front cover and the binding is tight. The pages are clean, no underlining, writing, or coloring. 📚 Check out my store for more Let's-Read-And-Find-Out Science Book, vintage, & living books! Synopsis | Read and find out about sleep in this colorfully illustrated nonfiction picture book. Why do you get sleepy? When you feel tired, your body is telling you that it needs a rest. Everyone needs sleep. Babies need lots of sleep. Grown-ups need less. But no one can go without sleep for long. A team of scientists stayed awake for as long as they could to see what could happen. Read and find out some wide-eyed facts about the science of shut-eye. This is a clear and appealing science book for early elementary age kids, both at home and in the classroom. Let's-Read-And-Find-Out Science Book#23 b-387