本书是一本令人振奋的、提高睡眠质量的指导书。旨在帮助读者提高睡眠质量，改善身心疲惫的状态。它将为您打开隐藏睡眠秘密的宝盒，深入浅出地解答了睡眠中的一切问题，教您如何才能克服障碍，进入甜美梦乡，提高生命质量。从某种意义上讲，本书将是您解读睡眠奥秘、改善睡眠质量不可少的钥匙。(This book is an exciting instructor for improvement of sleep quality. It is designed to help the readers improve sleep quality and improve the state of physical and mental fatigue. It will open a treasure box hiding the secret of sleep, simply answer all the questions in sleep and teach you how to overcome obstacles and fall into a sweet sleep, so as to improve the life quality. In a sense, this book will be a indispensable key to interpretation of the mystery of sleep and improvement of sleep quality.)