Sleeping at night hand numbness may be due to poor sleeping posture compression of blood vessels in the arm caused by the localized cervical spondylosis, there may be cervical spondylosis caused by different reasons, different treatment methods. 1. Poor sleeping posture: If you sleep in a poor posture at night, your head presses the blood vessels in your arm, which can lead to blood circulation obstacles in the hand, which in turn leads to the phenomenon of numbness in the hand at night, this situation only needs to be relieved of the pressure can be relieved, and you should avoid pressing your head against the arm when you sleep. 2. Localized cervical spondylosis: also known as pillow fall, is an acute inflammation around the cervical spine joints, may be too high with the pillow leading to muscle spasm, strain, the disease can also lead to patients with symptoms of numbness of the hand at night to sleep, can be relieved by resting, hot compresses, etc., but also oral ibuprofen, celecoxib and other medications for pain relief. 3. cervical spondylosis: cervical spondylosis is a cervical spine disc degenerative changes, patients with cervical spondylosis can also appear sleeping hand numbness symptoms, treatment should change the daily bad sitting posture and habits, but also the use of ethylphenidate to lift the muscle spasms, the use of ibuprofen, diclofenac sodium, and other medications for pain relief. If the symptoms of hand numbness in the night continue to be unrelieved, you should consult a doctor in time to find out the cause and ask the doctor to deal with it.