I don't know why this never crossed my mind before...probably because I remember the day I initially hurt myself, but here is the thing, I grew up sleeping on a waterbed from the age of 11 until I moved out of home, at age 19. That's 8 years of full motion waterbed sleeping. Now, I know this wasn't the cause of my back problems, but do you think it could have contributed to it in some small way? I mean, what I am getting at is, from age of 11 - 19, my adolescent body is growing. Every part of me. Now I know some people sleep on the floor in some countries, and some people sleep in hammocks in others. But a full motion waterbed? Do you think that could be bad for a growing adolescent's back? I always kept my bed less full, so it would be extra 'sloshy!'
Just wondering what your thoughts are on this. I was a child of the 70's, and waterbeds were the "IN" thing. Boy, was it nice in the winter, when I turned up it's heater too!