Mastering the Art of Sleep: Finding the Perfect Balance of Deep, Light, and REM Sleep
The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
Pulling an All-Nighter vs. 2 Hours of Sleep: Which is Worse? – Healthy Living and Diet Tips–SELF
How much sleep do you really need? | Sleeping with Science, a TED series
How many hours of sleep a night do I need?
Are you Getting Enough Deep Sleep?
Are naps actually good for us? | Sleeping with Science
How many hours of sleep do you need?
REM Sleep - How Much Sleep Do You Need
How to Get More REM Sleep
How Much Sleep Do You Need? - Professor Of Neuroscience, Russel Foster
How to Sleep Less and Get More Out of Your Day- Thomas DeLauer
How long should your naps be? - Sara C. Mednick
What Happens to Your Body on Little Sleep?
How to Sleep Less & Sleep Better
How to Only Sleep 2 Hours Per Day
Why you're still tired after getting 8 hours of sleep
"Get Quality and Sufficiently Long Deep Sleep" by Dr. Andrew Huberman
Yoga Guru - Hansaji | How many hours should you sleep?
Dr. Matt Walker: The Science & Practice of Perfecting Your Sleep