RESUMEN
Sleep plays an essential role in individual energy conservation and disease prognoses. However, sleep disturbance is a common problem in intensive care and is associated with adverse effects. The factors that cause sleep disturbance in critically ill patients are complex and include both internal and external factors. Furthermore, the effects of sleep disturbance are not limited to intensive care units as the condition may persist after discharge. Therefore, sleep disturbance cannot be ignored and deserves greater research attention. Based on a literature review, this article describes the theoretical mechanisms, factors, influences, and subjective and objective assessment tools related to sleep in critically ill patients. The pharmacological and non-pharmacological strategies introduced in this study may be referenced by clinical medical professionals to better understand sleep disturbance in critically ill patients and promote effective sleep care for this vulnerable population.
