For ordinary people who have trouble sleeping to shift workers who must learn to sleep during the daytime, this book explains why sleep is so important, identifies the different types of sleep disorders, gives advice on managing stress, and explains how sleep medication and other drugs can affect sleeping patterns. Also provided are tips on retraining oneself to sleep and sleep aids and how to cope with jet lag. Managers will benefit from the detailed information on fatigue, what they should know about it, and how it affects their employees.