“…of the analyzed records, and is defined as "the interruption in the duration and quality of sleep, causing discomfort or interference with desired living activities" (14) or as sleep pattern disturbance, which is "the disturbance, during a limited time period, in the quantity or quality of sleep" (16) . According to the study framework, sleep is a nursing phenomenon, defined as "Rest with the specific characteristics: Recurring lowering of bodily activity marked by reduced consciousness, not awake accompanied with not aware, depressed metabolism, immobile posture, diminished bodily activity, diminished but readily reversible sensitivity to external stimuli" (10) .…”