Why you're still tired after getting 8 hours of sleep
How much sleep do you really need? | Sleeping with Science, a TED series
How to Sleep Less and Get More Out of Your Day- Thomas DeLauer
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
How to Sleep Less & Sleep Better
Why Do I Feel So Sleepy Despite Having Enough Sleep? – Dr. Berg
How Sleep Affects Your Brain
What Happens To Your Body When You Sleep 4-6 Hours vs 7-10 Hours
Do people really need 8 hours of sleep?
Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired
Wake Up Full of Energy - (10 Hour) Rain Sound - Sleep Subliminal - By Minds in Unison
⭒✧✦❃☽{listen once} 1 hour of sleep = 8 hours, restful sleep and energy subliminal ☾❃✦✧⭒
Pulling an All-Nighter vs. 2 Hours of Sleep: Which is Worse? – Healthy Living and Diet Tips–SELF
ぐっすり眠って起床気分爽快★すぐに眠りにつく★不眠症解消のための睡眠音楽
What Happens to Your Body on Little Sleep?
Can You Sleep Too Much? (The Answer Might Surprise You)
Doctor Explains Why You DON’T Need 8 Hours Sleep!
Insomnia: why can't I sleep?
Why are you still tired after a full night's sleep?
