Видео ютуба по тегу How Many Hours Of Sleep Do You Need

How much sleep do you really need? | Sleeping with Science, a TED series

How Much Sleep Do You Actually Need?

Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED

The Science of Sleep: How Much Do You Really Need?

REM Sleep - How Much Sleep Do You Need

How Much Sleep Do You Need? - Professor Of Neuroscience, Russel Foster

How Much Sleep Do We Need? | Health Benefits & Healing Power of Sleep | Sleep & Productivity

How Much Sleep Do You REALLY Need?

How much sleep do you really need? (S1) | The Power of Good Health

HOW MUCH SLEEP DO YOU NEED?

Сколько сна вам действительно нужно?

Are naps actually good for us? | Sleeping with Science