If you are lying awake night after night, exhausted and frustrated, you are not alone—and you are not broken. This clear, plain-language guide explains what is really happening in your body and mind when sleep will not come, and gives you the step-by-step, evidence-based tools to restore restful sleep without relying on pills. Drawing on the consensus of major health authorities including the American Academy of Sleep Medicine, the National Institutes of Health, and the UK's National Health Service, you will learn how to reset your circadian rhythm, use cognitive behavioral techniques proven to work, optimize your nutrition and movement, and have more confident, informed conversations with your doctor. No hype, no quick fixes—just trustworthy, practical strategies that complement your medical care. Whether you are 25 or 65, dealing with acute or chronic insomnia, this book will help you understand your sleep and take back your nights. Part of The Practical Health Library.