Sleeping body can not move but conscious may be due to sleep paralysis, cerebrovascular disease. It is recommended that patients go to the hospital for examination, identify the causes and then treat the symptoms. 1. Sleep paralysis: It may be caused by sleep disorder, in which the brain is awake during the rapid eye movement period of sleep, but the body is still in the state of rest, thus showing that the body can not move, but conscious. This symptom usually does not need treatment. 2. Cerebrovascular disease: If the patient has the basis of vascular sclerosis, there may be embolus dislodgement during sleep resulting in blood vessel blockage thus causing cerebral ischemia and hypoxia. As a result, the corresponding area will be unable to move the limbs, but the consciousness is clear. If you consider cerebrovascular disease as the cause of your inability to move your body while you sleep, you should consult a doctor in a timely manner and standardize your treatment to avoid delaying your condition.