So sorry you have had to deal with this. I agree with Ms D whole heartedly. I was having a similar problem after a very successful ulnar nerve decompression......the nerve in the elbow region. My hand was going to sleep at night. I talked to the surgeon and had me use an ace pull on thingy to isolate and hold the elbow straight while sleeping. He said that sleeping with your arm under your pillow was a no no after an ulnar or carpal decompression. It put the joints in positions that put pressure on the nerves. You can go to sleep with the best of intentions but have no control if you normally sleep that way. It makes sense if you think about it. It solved the problem in short order and I still use it almost 10 years later. If I go for a few nights without using it, I start to have problems again because I evidently sneak that arm under the pillow. Best wishes.