If it's to stop demons from raising your bed off the ground - it's not going to work. They'd rather take the body anyway and leave the bed where it is.
I know what Reagan went through, as a kid my bed would shake and rise a bit also - I had these dreams about dead people singing and inevitably, I'd wake up to my bed moving around on its own.
I don't believe in such a thing as demons, but I remember how scared my brother was of what was happening. The voices were loud enough he could hear them also.