Research results that people living in places with lots of nature and parks are less likely to lack sleep - GIGAZINE
Is Sleeping Less the Key to Professional Success?
Amy Chua quote: As a purely mathematical fact, people who sleep less live...
Does more sleep mean you are smarter? - Quora
Older Americans: Sleep "Doze" a Body Good
As a purely mathematical fact, people who sleep less live more | Picture Quotes
Why we're sleeping less - CNN.com
Here's Why You Sleep Much Less As You Age | HuffPost Life
Why Sleep Less?. Introduction and Background | by Luis Corrales | Medium
Are we sleeping less than we used to? Here are the facts
Why Do Some People Need Less Sleep Than Others? | Live Science
A way to sleep less and still be energetic : r/lifehacks
Does Less Sleep Make You Less Healthy?
As a purely mathematical fact, people who sleep less live more. - IdleHearts
Sleeping: Slowing down memory with less sleep .. Research reveals key facts ..! | Poor Sleep Causes Memory Loss And Forgetfulness .. Research reveals key facts ..! | pipanews.com
Sleep Deprivation Kills: 30 Ways Not Sleeping Affects Your Body, Brain
How To Sleep Less: Function Better on Less Sleep (Step by Step)
Shut-Eye Deficit: OECD Survey Reveals Japan Most Lacking in Sleep | Nippon.com
A second mutation that makes people need less sleep has been found | New Scientist
