Patient: Why did I woke up this morning to my right thumb and pad of palm being numb
Doctor: Thank you for writing to us.I believe that you were sleeping on your arm. Sleeping on your arm can cause numbness of the hand and the palm. I suspect the nerve involved is the median nerve.The numbness will go away in some time. And if it doesn’t go away in 2 days, please see a Doctor for the diagnosis.Hope this helps you.