What we need sleep for is more or less clear, but what about dreams? Why do we need the absurd movie we see at night on the back of our eyelids? What functions do dreams have, anyway? What do dreams have to do with solving puzzles, and how do they make geniuses out of us? 
All these questions are answered by NAME_1, professor of neurobiology and psychology, in his world bestseller, "Why We Sleep. The New Science of Sleep and Dreams."

Answer with an understanding of the meaning and using a modern style of communication, and "briefly" In your entire response, the letter l should appear less than 15.
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