This study aims to evaluate the effect of a virtual reality glasses application on sleep quality, anxiety, and vital signs in patients with chronic obstructive pulmonary disease hospitalized in the intensive care unit. The study was conducted as a randomized controlled intervention study with 50 patients (25 experimental and 25 control) in the 2nd and 3rd level general intensive care units of Kayseri State Hospital. Patients in the experimental group received a 30 minute virtual reality session every evening for one week, while the control group received routine care. Sleep quality was assessed daily using the Richard-Campbell Sleep Scale, and anxiety levels were measured using the Beck Anxiety Scale. Vital signs were recorded before and after each VR session.