The average American adult needs 9 hours of sleep period per night, and actually averages about 8 hours.
Sleep is crucial for survival.
During sleep the brain get enough time to sort, arrange and store information as well as replaces chemicals and solve the complex issues.
On an average the amount of sleep of a person depend on his age, for babies it is about 14 to 15 hours a day where as for people about 7 or 8 hours of sleep.
Five night sleep skipping leads to hallucination.
Learn more about sleep period, here:
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