The sudden inability to move the body while sleeping is also known as sleep paralysis, often referred to as ghost bed press. This phenomenon is caused by the fact that the patient’s subjective consciousness is awake during sleep and can even hear the surrounding sounds, but the brain tissue governing the body is still in a dormant state, and the muscles of the whole limbs are in a state of low tension and not controlled by the subjective consciousness, resulting in the separation of sensation and action, so that the symptoms of temporary paralysis appear. Most patients can gradually disappear after a few minutes, which is a normal physiological phenomenon, mostly due to emotional tension, stressful work life, etc. 50% of normal people may have related experiences, which have no adverse effects on physical health and generally do not require special treatment.