What happens if you regularly only get 3 hours of sleep per night? - Quora
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8 Hours or 7 Hours of Sleep, What's the Difference? | SiOWfa15: Science in Our World: Certainty and Controversy
How Much Sleep Does My Child Need? - The Sleep Charity
Is An Hour of Sleep Better Than None At All?
Sarah Chalmers reveals what six hours sleep a night does to your face | Daily Mail Online
8 Hours or 7 Hours of Sleep, What's the Difference? | SiOWfa15: Science in Our World: Certainty and Controversy
4 Hours of Sleep 6 Hours of Sleep 8 Hours of Sleep | Sleep Meme on ME.ME
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Is it a myth that we need 8 hours sleep? - Sleep Matters
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Sleeping 6 Hours is Healthier Than 8 Hours? (Sports and Bodybuilding) - YouTube
What's the difference between getting 7 hours of sleep and 6 hours of sleep? - Quora
University of California, San Diego: External Relations: News & Information: News Releases : Health
Only 5 Hours of Sleep? It's Worse For You Than You Think
I got used to sleeping for only 6 hours or sometimes less. Is that bad? - Quora
Expert reveals what four, six and eight hours of sleep does to your face | Daily Mail Online
Owl Turd Sleep | Shen Comix | Know Your Meme
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7 hours and 6 minutes is the 'perfect' amount of sleep you need to be happy - National | Globalnews.ca
Three quarters of Brits get less than eight hours sleep | YouGov
