Inclusion Criteria:  ≥18 years, Admitted to the ICU as of the start of the study and planned to be followed up in the ICU for at least 24 hours, Needing invasive MV for at least 24 hours, Pre-deliric score > 20% At least one positive delirium according to CAM-ICU, GCS score > 8, RASS score ≥ -3, Hemodynamically stable, CPOT score ≥ 3  Exclusion Criteria:  Hearing or vision problems, Diagnosed with psychiatric illness, Diagnosed with dementia, Having acute neurological injury, Alcohol/drug poisoning Hemodynamically unstable and treated with high-dose inotropic/vasopressor medication, Pregnant, Planned to be followed in ICU for less than 24 hours, Does not need MV, GCS score ≤ 8, RASS score < -3, Patients referred from another ICU