Inclusion Criteria:  Age ≥ 18 The expected duration of stay in the intensive care unit is more than 24 hours. In the first 24 hours of hospitalization, On mechanical ventilation, conscious patients Patients who volunteered to participate in the study Not using sleeping pills* * Prescription drugs (benzodiazepines, nonbenzodiazepines), quetiapine, antihistamines, antidepressants used for their sedative effects  Exclusion Criteria:  illness Suspected or approved drug or alcohol poisoning Contraindication to the use of earplugs or eye masks (eg facial trauma or other safety concerns) Patients using hearing aids Severe neurological deficits defined as coma (Richmond Agitation Sedation Score <-4 or -5 (deeply sedated and coma) due to cranial trauma, malignancy, anoxic brain injury, or cerebral edema) Having a known cognitive disorder (such as dementia, Alzheimer's, psychosis.) Patients with a Glasgow coma scale (GCS) of 8 and below