An Exploratory Study of Chenghuang Circadian Rhythm Regulator in Subjects With Sleep Disorders

Inclusion Criteria: * Adult subjects complain about significant distress or impairment in social functioning caused by poor sleep; * Following sleep problems happened ≥ 3 times a week and last for ≥ 1 month: 1. Difficult in sleep onset: sleep actigraphy device report sleep latency ≥ 30 mins; 2. Or difficult in sleep maintenance: nighttime awakenings ≥2 times; or early morning awakenings; or total sleep duration \< 6 hours; or abnormal deep reported by actigraphy device; * Pittsburgh Sleep Quality Index(PSQI) global score \>7; * Subjects voluntarily agree to participate in this study and have signed the informed consent form. Exclusion Criteria: * Subjects with coagulation dysfunction, severe cardiovascular and cerebrovascular, hepatic, renal, hematological disorders, or psychiatric diseases; * Pregnant or lactating women; * Subjects with secondary sleep disorders (e.g., due to depression, anxiety, sleep apnea syndrome, etc.); * Subjects who received acupuncture, hypnotics or cognitive behavioral therapy for sleep disorder within past 4 weeks; * Subjects with shift work or a history of transmeridian travel within the past 4 weeks; * Subjects with diseases, medication use, or swallowing difficulties that may affect gastrointestinal absorption or motility; * Subjects with diseases or abnormalities assessed by the investigator to potentially affect study results