Sleep Has Been Found To Affect Nearly All Aspects Of Health, Both Individual And Societal. Despite This, It Has Long Been Neglected In The Medical Literature Until Relatively Recent Times. Different Perspectives Of Sleep Are Discussed, Including Historical Views Of Sleep And Alternative Sleep Patterns. The Development Of Sleep As A Medical Specialty Is Described As Are Limitations To The Conventional Medical Approach To Sleep. The Foundations Of A Truly Integrative Approach To Sleep Are Enumerated-- Provided By Publisher.