The Big Sleep The Big Sleep The Big Sleep (1939) is a hardboiled crime novel by Raymond Chandler, the first to feature the detective Philip Marlowe. It has been adapted for film twice, in 1946 and again in 1978. The story is set in Los Angeles. The story is noted for its complexity, with characters double-crossing one another and secrets being exposed throughout the narrative. The title is a euphemism for death; it refers to a rumination about "sleeping the big sleep" in the final pages of the book. In 1999, the book was voted 96th of "Le Monde"s "100 Books of the
Sleep hygiene and the Division of Sleep Medicine at Harvard Medical School, both of which have created public websites with sleep hygiene resources, such as tips for sleep hygiene, instructional videos, sleep hygiene self-assessments, poll statistics on sleep hygiene, and tools to find sleep professionals. A cooperative agreement between the U.S. Centers for Disease Control and Prevention and the American Academy of Sleep Medicine was established in 2013 to coordinate the National Healthy Sleep Awareness Project, with one of their aims being to promote sleep hygiene awareness. While the term "sleep hygiene" was first introduced in 1939 by Nathaniel Kleitman, a book