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Sleep Through Insomnia: End the Anxiety and Discover Sleep Relief with Guided CBT-I Therapy: Peters M.D., Brandon R: 9781728222011: Amazon.com: Books
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What Time Should You Go to Sleep Based on Your Age?
Short on sleep? Your heart may have a harder time adjusting to disruptions during sleep
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Can You Catch Up on Lost Sleep? - Scientific American
The sleepless elite: the short sleepers, night owls and early birds at the same time
CDC - Data and Statistics - Sleep and Sleep Disorders
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Causes of Short Duration Sleep and Restriction
Gene identified in people who need little sleep | National Institutes of Health (NIH)
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