Poor Sleeping Position
Sleeping with your arm under your body or your wrist bent awkwardly can temporarily compress nerves.
Fortunately, symptoms usually disappear once pressure is relieved.
Pinched Nerves in the Neck
Problems affecting the neck can sometimes cause symptoms that travel down the arm and into the hand.
A compressed nerve in the cervical spine may create numbness, tingling, or weakness.
Diabetes
People with diabetes may develop nerve damage over time, a condition known as peripheral neuropathy.