Numbness of the fingers at night may be related to compression of the hand, carpal tunnel syndrome, diabetes and other factors. 1. hand compression: when sleeping at night, the hand is compressed by heavy objects, the blood circulation of the hand is not smooth, easy to cause numbness of the fingers. 2. carpal tunnel syndrome: long-term overuse of the wrist, wrist pressure for a long time, easy to cause the median nerve in the carpal tunnel. 2. Carpal Tunnel Syndrome: long-term overuse of the wrist, wrist pressure for a long time, easy to lead to the carpal tunnel in the median nerve pressure, finger numbness, weakness, pain, and numbness of the fingers at night may be aggravated. 3. diabetes: diabetic patients who fail to effectively control blood sugar for a long time, the disease aggravates, may lead to peripheral nerve lesions, so that numbness of the fingers. It is recommended that the patient to change the appropriate sleeping position to sleep, to avoid hand pressure and numbness. If the phenomenon of numbness of the fingers is more serious, the patient should go to the hospital for appropriate examination, under the guidance of the doctor according to the condition of the symptomatic treatment.