The Big Sleep (1946 film) E. Jackson were completely eliminated. Because of the two versions created by the re-shooting, there is a substantial difference in content of some twenty minutes between them, although the difference in running time is two minutes. Novelist Raymond Chandler said Martha Vickers (Carmen) overshadowed Lauren Bacall (Vivian) in their scenes together, which led the producers to delete much of Vickers' performance to enhance Bacall's. The re-shot, re-edited and revised "The Big Sleep" was finally released on 23 August 1946. The cinematic release of "The Big Sleep" is regarded as more successful than the 1945 pre-release version (see below), even though
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