Subtyping of Insomnia Disorders Based on Multidimensional Features

Inclusion Criteria: Aged between 18 and 65 years, regardless of gender; Currently meeting the diagnostic criteria for insomnia disorder according to the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5); Pittsburgh Sleep Quality Index (PSQI) total score ≥ 10; Sufficient level of education and comprehension to complete the required examinations and assessments for this study; Voluntarily participating in this research and signing the informed consent form. Exclusion Criteria: Currently diagnosed with other sleep disorders (sleep-related breathing disorders, periodic limb movement disorder, parasomnias, central disorders of hypersomnolence, circadian rhythm sleep-wake disorders, etc.); Currently diagnosed with organic brain diseases (epilepsy, cerebrovascular disease, etc.) or other organic diseases; Patients with a history of or currently diagnosed with bipolar and related disorders, obsessive-compulsive and related disorders, schizophrenia spectrum and other psychotic disorders, trauma and stressor-related disorders, dissociative disorders, or eating disorders; Women who are pregnant, breastfeeding, or planning to become pregnant during the study period; Insomnia caused by alcohol or substance abuse; High suicide risk, with HAMD-17 suicide factor score > 2; Inability to cooperate with near-infrared examinations and polysomnography due to physical conditions such as head injury, etc.