Abstract: Sleep disorder is one of the common complications following stroke， which includes excessive daytime sleepiness， insomnia， parasomnia， narcolepsy， circadian rhythm disorder， sleep related movement disorders and sleepdisodered breathing.Various factors contribute to the poststroke sleep disorder， such as neurobiological and psychosocial factors. In this article， we briefly review the change of poststroke sleep structure as well as epidemiology and pathophysiological mechanism of poststroke sleep disorder.

Key words: sleep disorders, stroke；sleep disorders, circadian rhythm