ebSciences is developing a Web site for the World Health Organization's Worldwide Project on Sleep and Health. The Site will make valuable health information on sleep hygiene and sleep disorders available globally. The Worldwide Project on Sleep and Health is implementing a progressive series of projects of significant importance which will address the following questions: How does sleep affect the health, quality of life, productivity, and safety of individuals and society in each of these regions? What are the most effective ways to improve sleep hygiene? How can the deleterious effects of poor sleep be reduced? What are the epidemiological characteristics of sleep disorders? These and other questions will be examined, and methods will be developed to enhance sleep hygiene and improve the recognition, diagnosis and treatment of sleep disorders. This is a multi-year, global program that will provide benefits for sleep researchers, clinicians and the public well into the 21st century.