Sleep & Recovery
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By Guy Hendrikson
Your Sleep Need Stops Shrinking at 18. You Have Been Negotiating Ever Since.
How much sleep do you need by age? Newborns need 14 to 17 hours, teenagers 8 to 10, and adults at least 7. The chart drops fast through childhood, then runs flat for half a century, and most adults spend that half century haggling with the flat part.