Webb, W. B. (2000). Sleep. In A. E. Kazdin (Ed.), Encyclopedia of psychology (Vol. 7, pp. 297-302). Washington, DC: American Psychological Association.
http://dx.doi.org/10.1037/10522-131
This entry includes the following topics: the dimensions of sleep; the determinants of sleep; sleep as a need; sleep as a timed system; behavioral control; the modulators of sleep; species; age; individual differences; central nervous system controls; drugs; sleep disorders; the consequences of sleep variation; effects of sleep loss; shifts in sleep timing. (PsycINFO Database Record (c) 2016 APA, all rights reserved)