The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
What Happens To Your Body And Brain If You Don't Get Sleep | The Human Body
Mastering the Art of Sleep: Finding the Perfect Balance of Deep, Light, and REM Sleep
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REM Sleep - How Much Sleep Do You Need
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How much sleep do you really need? | Sleeping with Science, a TED series
A walk through the stages of sleep | Sleeping with Science, a TED series
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How lack of sleep affects health and tips for a good night's rest
Too much REM sleep: why do depressed people wake up exhausted? | Human Givens
How Sleep Affects Your Brain
What would happen if you didn’t sleep? - Claudia Aguirre
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