I recently saw a hand specialist because of pain in my hand. (My crps is in my foot.) My fingers sometimes feel cold, but is not ice cold like my foot. Also no swelling in my hand. Anyway, the doc said he thinks it is more carpel tunnel and less crps. He is having me wear a wrist brace only at night. He said that would prevent me from sleeping with my wrist bent too far forward or backward, and help the nerve inflammation go down. He also said that carpel tunnel,could make my fingers cold. I am bring this up because maybe the numbness in your hand in the morning is because of the position of,your hand while you sleep, so could be helped with a brace. I know that immobilization isn't great for cprs, and he doesn't want me to use it other than at night, but it seems to be helping.