From early school start times to late nights spent on social media, there are many reasons why teens often aren't getting the sleep they need. But why exactly is sleep so important? How does not getting enough impact our physical well-being, academic performance, and interactions with others? How do you know if you have a sleep disorder, and what treatment options are available? Can caffeine and power naps make up for poor sleep habits? What are the keys to achieving healthy sleep? Books in Greenwood's Q&A Health Guides series follows a reader-friendly question-and-answer format that anticipates readers' needs and concerns. Prevalent myths and misconceptions are identified and dispelled, and a collection of case studies illustrate key concepts and issues through relatable stories and insightful recommendations. Each book also includes a section on health literacy, equipping teens and young adults with practical tools and strategies for finding, evaluating, and using credible sources of health information both on and off the Internet-important skills that contribute to a lifetime of healthy decision-making.