Restful Sleep: What Is It and How to Know if You're Not Getting It - CNET

It's not just about how long you sleep. The quality of sleep also determines how rested you feel.

We've been told that the secret to good sleep is the magic number: Eight hours of sleep is all you need to be healthy. But that's not exactly true, since you can sleep for the recommended amount and … [+4084 chars]

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