Why Do I Feel So Sleepy Despite Having Enough Sleep? – Dr. Berg
Too much REM sleep: why do depressed people wake up exhausted? | Human Givens
Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED
How much sleep do you really need? | Sleeping with Science, a TED series
The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
Can You Get Too Much Sleep?
Real Questions - Is getting too much sleep bad for you?
Why you're still tired after getting 8 hours of sleep
What happens when we sleep?
How to Stop Oversleeping | wikiHow Asks an Expert Sleep Doctor
Why Do We Have To Sleep?
How many hours of sleep a night do I need?
Insomnia: why can't I sleep?
Can You Sleep Too Much? (The Answer Might Surprise You)
How Much Sleep Do You Actually Need?
Why You're Always Tired - 7 Myths Ruining Your Sleep
How to deal with your insomnia — and finally get to sleep | Sleeping with Science
6 tips for better sleep | Sleeping with Science, a TED series
Sleep Paralysis Is Terrifying & Preventable
Sleep Is Your Superpower | Matt Walker | TED