Proven solutions for a better night's sleep, from the "sleep guru" to elite athletes
One-third of our lives--3,000 hours a year--is spent trying to sleep. The hours we spend in bed shape our moods, motivation, alertness, decision-making skills, creativity...in short, our ability to perform. But most of us have disturbed, restless nights, relying on over-stimulation from caffeine and sugar to drag us through the day. It's time for a new approach. Endorsed by professionals in sports and business, Sleep shares a new program to be your personal best: learn how to map your unique sleep cycle, optimize your environment for recovery, and cope with the demands of this fast-paced, tech-driven world. Sleep your way to a more confident, successful, and happier you.
Protected by Amazon A-to-z Guarantee & generous return policies
Every book purchase is protected by the Amazon A-to-z Guarantee. This guarantee covers both the condition of your book and its timely delivery, providing full buyer protection whether you purchase directly from Amazon or from third-party marketplace sellers.
Generous 30-day return policy on physical books. Amazon makes returns effortless with self-service return labels, drop-off at thousands of local locations (Kohl's, Whole Foods, UPS Stores), and free return shipping on eligible book purchases.
Maximize your savings with competitive pricing, deep discounts on new and used marketplace copies, bundled textbook rentals, and exclusive member savings through Amazon Prime with free fast delivery.
Read your way across versatile digital and physical formats: instant delivery via Kindle eBooks, unlimited reading with a Kindle Unlimited subscription, audiobook listening with Audible (often featuring a 30-day free trial), or traditional paperback and hardcover editions.
OpenCourser helps millions of learners each year. People visit us to learn workspace skills, ace their exams, and nurture their curiosity.
Our extensive catalog contains over 50,000 courses and twice as many books. Browse by search, by topic, or even by career interests. We'll match you to the right resources quickly.
Find this site helpful? Tell a friend about us.
We're supported by our community of learners. When you purchase or subscribe to courses and programs or purchase books, we may earn a commission from our partners.
Your purchases help us maintain our catalog and keep our servers humming without ads.
Thank you for supporting OpenCourser.