How many hours of sleep a night do I need?
夜勤中に質の高い睡眠を得る方法
Do people really need 8 hours of sleep?
レム睡眠とは?どのくらいの睡眠が必要ですか? |睡眠に関するすべて
How Much Sleep Do You Really Need? - Professor Of Neuroscience
Doctor Explains Why You DON’T Need 8 Hours Sleep!
Sleep Revolution Clinic - How Can I Get Enough Sleep on Shift Work? | Lorraine
Sleeping Schedule: Your SLEEP and Working 3rd Shift – Dr.Berg
7 Hidden Dangers of Night Shift Work (And How to Avoid Them!) | Kristen Holmes
Elon Musk Shares How Many Hours of Sleep He Needs to Be Productive! | @MindMasteryX
Are naps actually good for us? | Sleeping with Science
How shift workers can avoid bad sleep
Sleep scientist Dr. Chris Harvey on the effects of night shift work
5 Night Shift Sleep Tips
Dr. Matt Walker: The Science & Practice of Perfecting Your Sleep
The World’s No.1 Sleep Expert: The 6 Sleep Hacks You NEED! Matthew Walker
本当に必要な睡眠時間はどれくらいですか?
𝗡𝗶𝗴𝗵𝘁 𝗦𝗵𝗶𝗳𝘁 𝗪𝗼𝗿𝗸 - Sleep Problems & Proven Sleep Solutions
What Would Happen if You Only Got 5 Hours of Sleep Per Night - NOT GOOD!
How Many Hours Of SLEEP Do You Need As An Adult?