Bob, place 6" blocks under the head end of your bed so that the whole bed slopes down from head to toe at a 5 degree incline. Give this a month to get used to it. You can begin at half this height to settle yourself in. The idea here is that the nervous system, which does not have a pump, depends on the direction of gravity to function normally. Google myelin figures and gravity. This will show you that myelin only grows in the direction of gravity.