Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Wonderful Book!

Without question this is a wonderful book that addresses many of our personal, human problems, including how to deal and cope with them. This book is not just about sleep but about living a meaningful life. If you want a quick fix or magic bullet for sleep difficulties, look elsewhere. But if you want to examine your heart, mind, and even your soul, then you will find, like I did by following the suggestions given in the book, that "Live Well, Sleep Well" is an excellent guide to a sense of peace and tranquility. It's not entirely about the number of hours we sleep, but the quality of our sleep.