Rapid eye movement (REM) sleep behaviour disorder (RBD) is a parasomnia that is characterized by abnormal behaviours occurring during REM sleep（a sleep stage）, often as dream enactments that can cause injury. Treatment options are limited. Pharmacological treatments include melatonin and clonazepam, but they have varying degrees of adverse reactions. Acupuncture is a green and safe means of treatment and has therapeutic value in sleep disorders. Using the theory of traditional Chinese medicine, the acupuncture treatment of RBD group points was formulated, and good clinical effect was obtained in the early clinical practice.This study was designed to explore the clinical efficacy of acupuncture in the treatment of RBD. Thirty patients with RBD who met the inclusion and exclusion criteria were randomly divided into acupuncture group and sham acupuncture group, and were subjected to a 2-week screening period, a 4-week treatment period, and a 2-week follow-up period.The investigators will primarily observe whether there is a reduction in the number of weekly RBD events recorded by the wCIRUS-RBD questionnaire before and after treatment, and the reduction in the RWA index recorded by video polysomnography (vPSG).

Rapid eye movement (REM) sleep behaviour disorder (RBD) is a parasomnia that is characterized by abnormal behaviours occurring during REM sleep（a sleep stage）, often as dream enactments that can cause injury. Treatment options are limited. Pharmacological treatments include melatonin and clonazepam, but they have varying degrees of adverse reactions. Acupuncture is a green and safe means of treatment and has therapeutic value in sleep disorders. Using the theory of traditional Chinese medicine, the acupuncture treatment of RBD group points was formulated, and good clinical effect was obtained in the early clinical practice.This study was designed as a randomized, controlled and single-blind trial to explore the clinical efficacy of acupuncture in the treatment of RBD. Thirty patients with RBD who met the inclusion and exclusion criteria were randomly divided into acupuncture group and sham acupuncture group, and were subjected to a 2-week screening period, a 4-week treatment period, and a 2-week follow-up period.The investigators will primarily observe whether there is a reduction in the number of weekly RBD events recorded by the wCIRUS-RBD questionnaire before and after treatment, and the reduction in the RWA index recorded by video polysomnography (vPSG).

Inclusion Criteria:

• (1) Patients who meet the diagnostic criteria of ICSD-3. To confirm this diagnosis, one of the following conditions must be met: ① The diagnosis is RBD after previous vPSG examination. ② Those who have not been diagnosed should fill in RBDQ-HK. If the score is greater than 20, it indicates possible RBD, and accept vPSG test to confirm the diagnosis.
• (2)Patients belong to iRBD or secondary to the following three alpha-synuclein diseases: Parkinson's disease/multiple system atrophy/Lewy body dementia;
• (3) ≥18 years of age, male or female;
• (4) At least 2 episodes of RBD events in the past 2 weeks (recalled by the patient or described by family members), including: ① verbal behavior, such as Shouting and swearing; ② Physical movement behavior, such as waving arms, punching and kicking; ③Falling out of bed, dropping things around you, injuring yourself or others, which is speculated to be related to dreaming behavior;
• (5) Volunteer subjects and sign informed consent;
• (6) Can cooperate with the completion of this study.

Exclusion Criteria:

• (1) During pregnancy or lactation;
• (2) Patients with secondary RBD associated with narcolepsy or antidepressant use;
• (3) Patients with severe anxiety, depression and other mental diseases, alcohol abuse and/or psychoactive drug use, drug abusers and dependents;
• (4) Patients with serious underlying diseases, especially unstable diseases (such as malignant tumors, chronic obstructive pulmonary disease, unstable heart disease, etc.);
• (5) Patients with coagulation dysfunction, skin infection or damage at the surgical site should not receive acupuncture.

IPD used in the results publication will be shared.

Beginning 3 months and ending 3 years after the publication of results

The IPD used in the results publication will be avalible to researchers，in which the name of the patients and other Identity information will be hidden. They can access the IPD by contact the principal investigator through e-mail.