Waking up with numbness in the right hand for the following reasons: First, it is more likely to be considered a cervical spine disease, mostly seen in people who work long hours at a desk. As a result of sleeping for a long time, the protruding cervical disc can cause the dural sac to be compressed, and after stimulating the nerve roots, the patient will have numbness in the right hand. The CT or MRI of the cervical disc can confirm the diagnosis after the morning activity. Second, waking up with numbness in the right hand can be clinically seen in cerebrovascular diseases, especially ischemic cerebrovascular diseases, which occur mostly in quiet time, and can be seen in middle-aged and elderly patients with risk factors of cerebral atherosclerosis, and the blood is sticky at night during sleep, which makes it easier for some ischemic cerebrovascular diseases to occur, and CT or MRI of the head can be performed if necessary. Third, waking up with numbness in the right hand can be seen clinically as a result of localized pressure on the right hand, such as elbow canal syndrome or carpal tunnel syndrome, which is mostly caused by poor sleep posture of the patient.