Most mornings when I wake up both hands are numb and a bit tingly. Not stiff and no pain, just that numbness - that wont allow me to grasp or use them for a short time. Example, If I wake up to my phone alarm, I am unable to wrk the buttons to turn it off for maybe a minute. It goes away slowly. Not on purpose, but I find that I sleep with my hands or my arm under the pillow and my head.