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Why We Sleep: Unlocking the Power of Sleep and Dreams: Unlocking the Power of Sleep and Dreams /]cmatthew Walker, PhD"Why We Sleep is an important and fascinating book Walker taught me a lot about this basic activity that every person on Earth needs. I suspect his book will do the same for you." Bill Gates A New York Times bestseller and international sensation, this "stimulating and important book" (Financial Times) is a fascinating dive into the purpose and power of slumber. With two appearances on CBS This Morning and Fresh Air's most popular interview of 2017,
"Why We Sleep is an important and fascinating book...Walker taught me a lot about this basic activity that every person on Earth needs. I suspect his book will do the same for you." --Bill Gates A New York Times bestseller and international sensation, this "stimulating and important book" (Financial Times) is a fascinating dive into the purpose and power of slumber. With two appearances on CBS This Morning and Fresh Air's most popular interview of 2017, Matthew Walker has made abundantly clear that sleep is one of the most important but least understood aspects of our life. Until very recently, science had no answer to the question of why we sleep, or what good it served, or why we suffer such devastating health consequences when it is absent. Compared to the other basic drives in life--eating, drinking, and reproducing--the purpose of sleep remains more elusive. Within the brain, sleep enriches a diversity of functions, including our ability to learn, memorize, and make logical decisions. It recalibrates our emotions, restocks our immune system, fine-tunes our metabolism, and regulates our appetite. Dreaming creates a virtual reality space in which the brain melds past and present knowledge, inspiring creativity. In this "compelling and utterly convincing" (The Sunday Times) book, preeminent neuroscientist and sleep expert Matthew Walker provides a revolutionary exploration of sleep, examining how it affects every aspect of our physical and mental well-being. Charting the most cutting-edge scientific breakthroughs, and marshalling his decades of research and clinical practice, Walker explains how we can harness sleep to improve learning, mood and energy levels, regulate hormones, prevent cancer, Alzheimer's and diabetes, slow the effects of aging, and increase longevity. He also provides actionable steps towards getting a better night's sleep every night. Clear-eyed, fascinating, and accessible, Why We Sleep is a crucial and illuminating book. Written with the precision of Atul Gawande, Andrew Solomon, and Sherwin Nuland, it is "recommended for night-table reading in the most pragmatic sense" (The New York Times Book Review).Shipping Notes
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
The best dog toy llama!
Color: Llama
My fur baby LOVES his stuffed llama!
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Perfect Squeaky Toy for My Exes Deranged Dog
Color: Multicolor, Color: Multicolor
My ex-beau and I are still friendly and we exchange Christmas presents. This year, I wanted to make sure that his utterly nutty and completely bonkers Aussie, Diego, got a new toy so that he has added enrichment in his enclosure. Diego really enjoyed this toy! A perfect size for him and a loud squeaker, which my ex will undoubtedly appreciate being squeaked non-stop while he is trying to game with his various assortment of video game people. Worth every penny. Diego’s smiling face is proof of his delight in his adorable Slothicorn. Squeak away, Diego! Squeak away!
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Reviewed in the United States on January 14, 2026
★★★★★ 4
Fun
Color: Multicolor
A little smaller than we'd hoped but all in all he's pretty cool and our dogs loved him.
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Reviewed in the United States on October 5, 2025
★★★★★ 5
Worth it!
Color: Llama
Wanted to keep this for myself! Made well, size is perfect for a 90 pound pup, durable enough for a non chewer (she cleans their fur but doesn’t chew anymore). Durable enough that has been left outside during Summer storms and washed/dryed a couple times already (I use a laundry bag) and still has its adorable shape.
Great value for the money, though I might need to buy another one for myself! *^_^*
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Our Doodle's Fav Toy
Color: Multicolor
The first slothicorn toy that we received had a broken squeaker. We were able to quickly and easily get a replacement and send the broken one back. This is one of my pup's favorite toys, although I don't think the horn will last long-- it's the part she likes to chew on the most! At 5lbs, the toy is the same size as my Goldendoodle puppy. I think the toy is overpriced when not on sale (I got on Black Friday promo), so I would encourage waiting for a price drop before purchasing or locating another option that's affordable.
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Reviewed in the United States on January 2, 2026