Acoustic Stimulation, Sleep, and Cognitive-Emotional Processes in Young Adults With Anxiety and Depression Symptoms

This study is exploring whether gentle sound stimulation delivered during sleep (acoustic neurofeedback) can improve sleep quality and reduce anxiety and depression symptoms in young adults who struggle with both sleep problems and emotional difficulties. **You may be eligible if:** - You are between 18 and 25 years old - You have normal hearing - You have elevated anxiety or depression symptoms (above average on a standard scale) - You also have elevated sleep disturbance (above a set threshold on a sleep scale) **You may NOT be eligible if:** - You have a serious psychiatric condition such as psychosis, bipolar disorder, or a developmental disorder - You currently take medications that affect sleep or mood (antidepressants, antipsychotics, stimulants, steroids) - You have a substance use disorder - You drink more than 14 alcoholic drinks per week - You consume more than 400mg of caffeine per day (about 3–4 cups of coffee) - You have used drugs or alcohol within 48 hours before an in-lab overnight session Talk to your doctor to see if this trial is right for you.