[Sleep disorders of patients in intensive care].

The objective of this article is to present a literature review of German and English literature concerning sleep disturbances of critically ill adults in intensive care units. It represents mainly nursing research-based studies which focused on characteristics and possible causes of sleep disturbances. The literature revealed that patients suffer from moderate to severe sleep deprivation characterized by a decrease of total sleep length and quality, and by sleep fragmentation. The causes are multifactorial. Nurses have an important role to play in recognizing and assessing factors that contribute to sleep deprivation and in intervening to reduce the effects of sleep deprivation. The research studies in this review represent the positivistic scientific perspective where sleep deprivation research has been objectified and controlled. A broader, more indepth understanding is needed, however, so that the subjective view of critically ill persons can be represented.