Dr. Hooper's book is ideal for anyone who thinks they suffer from a sleep disorder. Written so that a layperson can undrstand, it provides a guide through the problems that cause a person to sleep poorly. The book provides information to improve understanding of sleep's role in feeling well and to assist those with sleeping problems. If you are sleeping too little, too much or being unusually active during sleep, then this book can help you. The contents are easily understood due to frequent clear illustrations and tables. The layout design puts the facts you need at easy reach. Chapter summaries and separate sections for information on testing, classifying and explaining sleep disorders simplify the process.