By HarperCollins

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Product Description
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.
Product CategoriesAmazon > Books > Subjects > Science & Math > Technology Amazon > Books > Subjects > Education & Reference Amazon > Books > Subjects > Children's Books > Science, Nature & How It Works > Biology Amazon > Books > Subjects > Children's Books > Literature & Fiction Amazon > Books > Subjects > Children's Books > Growing Up & Facts of Life > Family Life > Sleep PriceZombie > Books * PriceZombie is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.
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United States
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