Most people spend a third of their life sleeping - around 25 years or more! Sleeping is essential for health and happiness, but no one really knows why we do it or why we have strange dreams. Read on to learn about sleep studies, the benefits of sleep, and what can happen if we don't get enough sleep.--back cover
1080L Lexile|||juvenile
written by Jim Pipe ; illustrated by Mark Bergin.
Includes index.
Accelerated Reader AR MG 6.2 1 180837.
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