The right answer is to see your doctor.I'm a recently retired US Army Occupational Therapist. I spent 20 years treating patients with numbness in the hands as a hand therapist both pre- and post-operatively. One of the first things that you should also do, is determine just exactly which fingers are going to sleep. The nerves that supply sensation do so in very specific patterns and can many times determine the correct course of treatment. For instance if the ring and small finger are getting numb, the problem could be in your elbow, if it is the other three fingers only, then it could be in your wrist. Or the problem could be higher up in your body - like in your neck. Thus the necessity for an accurate diagnosis from a physician.