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