If the recommended amount of sleep is 7-8 hours a night, how come so many people survive and are just fine on only 5-6 hours of sleep? - Quora
How Little Sleep Can You Get Away With? - The New York Times
Fatigue Science on Twitter: "Researchers find those sleeping 6 hours or less a night are 4x more likely to get sick http://t.co/MPNHZpTUWZ http://t.co/jOUzuQDGMD" / Twitter
17 Proven Tips to Sleep Better at Night
How much sleep do Singaporeans get? A majority (64%) manage 6-7 hours per night
What happens to your body if you sleep 8 hours every day?
How Much Sleep Do You Need? - HelpGuide.org
How Much Sleep Is Enough? How Much Sleep is Too Much?
3 Charts | The Importance of Sleep for Weight Loss | Visualized Science
Dr. Joseph Mercola - How much sleep is "enough?" | Facebook
When sleeping for less than 7 hours continues, the risk of developing various diseases increases from mental disease to sexual dysfunction - GIGAZINE
Sleep, Deprivation Of Just 6 Hours Increases Diabetes Risk
Does the body need a minimum of 7 continuous hours of sleep or just any 7 hours in a day? - Quora
Is 5 to 6 Hours of Sleep Enough? Risks, Hacks, and More
YouGov | One in three Australians not getting enough sleep
Objective sleep assessment in >80,000 UK mid-life adults: Associations with sociodemographic characteristics, physical activity and caffeine | PLOS ONE
7 hours and 6 minutes is the 'perfect' amount of sleep you need to be happy - National | Globalnews.ca
Is 5 Hours Enough Sleep? How Much Sleep Should I Get?
Six Hours Of Sleep – Meet Nectar. The only mattress with a full year trial
When sleeping for less than 7 hours continues, the risk of developing various diseases increases from mental disease to sexual dysfunction - GIGAZINE
The secret to success is sleep. - By Dr. Carmel Harrington
Short Sleep Duration Among Middle School and High School Students — United States, 2015 | MMWR
What's the difference between getting 7 hours of sleep and 6 hours of sleep? - Quora
Three quarters of Brits get less than eight hours sleep | YouGov
CDC - Data and Statistics - Sleep and Sleep Disorders
What happens if you regularly only get 3 hours of sleep per night? - Quora
