Bedtime often seems to come too early, but what would happen if you never went to sleep? When scientists decided to find out, they discovered that your brain needs a rest after a long day of thinking, just as your muscles need a rest after a long day of work. A different kind of bedtime story, this book is the perfect response to the questions "Can't I stay up a little longer?" Full color.

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. It's a Level 1 Let's-Read-and-Find-Out, which means the book explores introductory concepts perfect for children in the primary grades. The 100+ titles in this leading nonfiction series are:

hands-on and visualacclaimed and trustedgreat for classrooms

Top 10 reasons to love LRFOs:

Entertain and educate at the same timeHave appealing, child-centered topicsDevelopmentally appropriate for emerging readersFocused; answering questions instead of using survey approachEmploy engaging picture book quality illustrationsUse simple charts and graphics to improve visual literacy skillsFeature hands-on activities to engage young scientistsMeet national science education standardsWritten/illustrated by award-winning authors/illustrators & vetted by an expert in the fieldOver 130 titles in print, meeting a wide range of kids' scientific interests

Books in this series support the Common Core Learning Standards, Next Generation Science Standards, and the Science, Technology, Engineering, and Math (STEM) standards. Let's-Read-and-Find-Out is the winner of the American Association for the Advancement of Science/Subaru Science Books & Films Prize for Outstanding Science Series.