I Decided to Sleep for 4 Hours a Day, See What Happened Published 2018-01-24 Download video MP4 360p Download video MP4 720p Recommendations 2:05:41 The World’s No.1 Sleep Expert: The 6 Sleep Hacks You NEED! Matthew Walker 22:56 What Happens If You ONLY SLEEP 4 Hours A Night for 30 Days? 10:30 How to Sleep Less & Sleep Better 11:02 Hack Your Brain with Polyphasic Sleep 10:06 I Slept 3 Hours A Day For A Week (7 Days) And This Is What Happened - CHALLENGE 27:38 What Alcohol Does to Your Body 03:54 Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED 3:49:19 23 Fascinating Jobs Around The World | Big Business Marathon | Business Insider 02:45 What happens when we sleep? 13:24 My Evidence-Based Sleep Routine 04:50 What Happens To Your Body And Brain If You Don't Get Sleep | The Human Body 08:22 Why Do We Have To Sleep? 07:52 19 Simple Psychological Tricks That Actually Work 09:21 Science Explains How Much Sleep You Need Depending on Your Age 07:11 Sleep Smarter | Sleeping Science, How to be Better at it, & Feel More Refreshed 07:25 How to Fall Asleep in 2 Minutes 09:40 Put Salt in the Corners of Your House, and See What Happens 08:17 What Are Sleep Cycles? - Everything You Need To Know! 11:19 10 Great Exercises to Improve Your Eyesight Similar videos 01:58 Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired 03:58 What Happens to Your Body on Little Sleep? 01:19 How many hours of sleep do you need? 01:51 I Can't Sleep for More Than 4 Hours a Night - Why? | This Morning 00:41 How many hours of sleep a night do I need? 15:22 Can you sleep for just 4 hours a day ?? 02:22 "4 HOURS OF SLEEP" - The Fatal Mistake You're Making (Matthew Walker , Tim Grover , Rahul Jandial) 10:04 Scientist Explains How Some People Need Only 4 Hours of Sleep | WIRED 07:46 I Decided to Sleep 2 Hours a Day But I Didn't Expect These Changes 00:35 Doctor Explains Why You DON’T Need 8 Hours Sleep! 02:42 I slept 4.5 hours a night following a polyphasic sleep routine 10:01 How to Only Sleep 2 Hours Per Day 06:20 Why Humans Are Supposed to Sleep in Two 4-Hour Phases 00:58 This is how you can achieve PERFECT 100% sleep score every night. 02:55 How much sleep do you really need? | Sleeping with Science, a TED series 00:34 I didn’t sleep for 50 HOURS (THIS happened 😨) 04:42 Explained: What Happens If You Don't Sleep For A Week? | The Quint More results