Waking Up with a Numb Hand: What It Could Mean

Nerve Compression in the Neck or Shoulder
Issues such as a herniated disc or cervical spondylosis can press on nerves that extend to the hand, causing numbness or weakness.

Circulatory Problems
Poor blood circulation or conditions such as peripheral artery disease may result in numbness, especially if it is recurrent and not linked to body position.

Vitamin Deficiencies or Diabetes Deficiency in vitamins like B12, or nerve damage caused by diabetes (neuropathy), may cause tingling and numbness in the hands.
When to Seek Medical Advice
If numbness occurs frequently or lasts longer than a few minutes.