Improvement of Sleep Quality of Insomnia Patients with "Binaural Beats"

Inclusion Criteria: * Gender: No restrictions, Age: Between 20 and 75 years. * Meets the criteria for insomnia as defined by the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5): 1. Difficulty sleeping and insomnia occurring at least 3 nights per week. 2. Insomnia and sleep difficulties persisting for at least 3 months. * The participant has signed the informed consent form. Exclusion Criteria: * Individuals who are unable to complete the consent form, undergo testing, and attend regular follow-up visits as required by the study. * Individuals with severe physical illnesses or post-surgical conditions, such as heart disease or metabolic disorders. * Individuals with severe psychiatric disorders, including schizophrenia, major depressive disorder, severe anxiety disorder, bipolar disorder, dementia, or substance use disorders; or severe neurological conditions, such as stroke or epilepsy. * Individuals with other severe sleep disorders, such as severe sleep apnea. * Individuals who are unable to maintain a stable medication dosage during the trial period, particularly with ongoing treatments. * Patients deemed unsuitable for participation in the trial by the principal investigator. * Patients who are unable to adhere to sleep hygiene practices or who cannot refrain from using electronic devices before bedtime.