How to Only Sleep 2 Hours Per Day
What If You Sleep 2 Hours Less Every Night?
Why Humans Are Supposed to Sleep in Two 4-Hour Phases
How Much Sleep Do You Really Need? - Professor Of Neuroscience
Running on 4 hours of sleep a night?
I Decided to Sleep 2 Hours a Day But I Didn't Expect These Changes
徹夜 vs. 2時間睡眠:どちらが悪い? – 健康的な生活とダイエットのヒント – SELF
😵💫 55 HOURS OF NO SLEEP
8 時間の睡眠は必要ではない理由を医師が解説します。
疲れて目覚めた場合
What Would Happen if You Only Got 5 Hours of Sleep Per Night - NOT GOOD!
睡眠不足 vs 睡眠過剰 | どちらが悪いのでしょうか?
Sleep deprivation can lead to a 300-400% increase in being depressed and anxious
What are night shift people supposed to do with sleep?
What Happens If You ONLY SLEEP 4 Hours A Night for 30 Days?
How Much Sleep Do You Actually Need?
4時間寝ても8時間寝たように感じる方法(科学的根拠あり)
Sleep deprivation test with a spoon - are you sleep deprived?
I Slept 3 Hours A Day For A Week (7 Days) And This Is What Happened - CHALLENGE
What Happens If You Never Sleep 😳