Sleeping up with hand numbness is caused by inadequate blood supply to the end of the limb, caused by the following main causes: 1, incorrect sleeping posture, sleep process, if the prolonged compression of the upper limb, causing symptoms of inadequate blood supply to the distal limb can move the limb, and so the limb to restore blood circulation after hand numbness and other discomfort symptoms can be improved. 2, cervical spine disease, the increased incidence of the disease, and long-term sedentary, such as computer The protruding intervertebral disc compressing the brachial plexus nerve can cause finger numbness and other uncomfortable symptoms, and if the pressure on the neck during sleep can cause dizziness and other uncomfortable symptoms. 3, dyslipidemia, blood flow slows down during sleep, and if there is a history of dyslipidemia and other medical conditions can cause limb numbness and other uncomfortable symptoms, and if not treated in time, it may cause cerebrovascular diseases such as cerebral infarction, usually drink more water, eat a light diet, and keep a good diet. Eat a light diet, maintain a good sleep posture, and actively treat cervical spine disease.