Why You (Think You) Feel Better After Less Sleep - Sleeping.Guide
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Less sleep leads to more sickness, study says - New York Daily News
Sleep quality, duration, and consistency are associated with better academic performance in college students | npj Science of Learning
Ask Well: Can You Train Yourself to Need Less Sleep? - The New York Times
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Can you train yourself to get by on less sleep? - BBC Future
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Amazon.com: Instant Mindfulness: Stress Less, Sleep Better, Feel Abundantly Happier Without Drugs And Find Your Calm - IN JUST MINUTES eBook : Spell, Peter: Kindle Store
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Any less than 10 hours and I feel grumpy': meet the clean sleepers | Sleep | The Guardian
Blog - How to Get Better Sleep Without Sleeping More Hours