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Despite the fact that sleep is an everyday thing, the process itself contains many mysteries. You'd be surprised to know that until the 1950s, researchers considered the night to be just wasted time. But now we know that sleep is super important, even when we're awake! Here's what you'll learnWhat happens to our brains and bodies when we sleep?

What cells and organs can tell what time it is?

Why do we dream and what can we learn from them? Why does the least active activity of all - sleeping - help us not to get fat?

The book contains a lot of interesting facts about nightmares and sleepwalking, as well as how good sleep makes you smarter. You won't be laughing over Dreamopedia!