Impact of Analytic-integrative Cognitive Behavioural Therapy on Acute Insomnia Disorder (Stress)

Inclusion Criteria: 1. meeting the DSM-5 diagnostic criteria for insomnia disorder; 2. a total score of \>5 on the Pittsburgh Sleep Quality Index (PSQI); 3. age ≥18 years old, with junior high school education or above; 4. voluntarily participating in this study and signing an informed consent form; 5. the diagnostic criteria for acute insomnia disorder (duration of the disease less than 3 months). Exclusion Criteria: 1. people with comorbid serious physical or severe mental illnesses, suicide risk; 2. clinically diagnosed or suspected sleep breathing disorder, restless legs syndrome and sleep-wake rhythm disorder, shift workers; 3. pregnant and breastfeeding women; 4. people who are currently undergoing any psychological treatment.