I don't know if most of you know or have already tried this, but I have not had my decompression surgery yet and have been waking up with severe head pounding pain.
My father in law made me these adjustable wood blocks to put under the head of my bed to elevate it. He basically made about a 7 inch high board sandwhich with screws so I could add or subtract any number of them to get the right elevation. It took about three adjustments but now I do not wake up with that pounding pain.
I just wanted to post in case it might help someone else.