What does it mean when your right hand goes numb and so numb that it causes you to wake up from a dead sleep.?

Carpal tunnel. The most common cause would be carpal tunnel syndrome. The median nerve innervates the thumb, index finger and half the middle finger. It runs into the hand through a tunnel (called the carpal tunnel). If there is a bit of swelling of the tissues or if you bend your wrist while sleeping, the nerve gets pinched and causes numbness. There are some other possibilities, so get checked to be sure.
Trapped nerve. Often carpal tunnel syndrome or ulnar nerve entrapment can cause this...It is quite common. Have it evaluated because there are effective treatments for these conditions...