If you have already tried the stretches, the creams, the gadgets, and the new pillows, you know the real problem with all of them: you have to keep doing them. Miss a few days and you are back where you started.
A grounding sheet asks nothing of you. There is nothing to take, no routine to follow, and no new habit to build. You put it on your bed one time, you plug it in, and then you sleep exactly the way you always have. The connection happens on its own, every night, while you do nothing at all.