Mastering the Art of Sleep: Finding the Perfect Balance of Deep, Light, and REM Sleep
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
How many hours of sleep a night do I need?
The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
What happens when we sleep?
How many hours of sleep do you need?
This is how you can achieve PERFECT 100% sleep score every night.
How Much Sleep Do You Need? - Professor Of Neuroscience, Russel Foster
2-Minute Neuroscience: Stages of Sleep
Doctor Explains Why You DON’T Need 8 Hours Sleep!
How to Get More REM Sleep
Science Explains How Much Sleep You Need Depending on Your Age
How To Fix Your Sleep Schedule - Reset Your Sleep Pattern (animated)
Why Humans Are Supposed to Sleep in Two 4-Hour Phases
Do people really need 8 hours of sleep?
How to FIX Your SLEEP Schedule in 5 DAYS or Less
The Sleep Cycle: How It Works And Explaining The 4 Stages of Sleep!
How to Fix Your Sleep Schedule
Are you Getting Enough Deep Sleep?