I have the same mattress bouncing husband that you have. We solved the issue by buying a FMS mattress which was designed by Dr. Breus, sold through Beauty Rest (I think). The mattress does not transfer movement, yet it is soft enough to protect fibro-sore bodies. If I recall, the mattress salesman told us this same mattress is specified for people with spinal injuries. Dr. Breus is a sleep expert and he noticed the problems certain patients were having with a regular mattress, so he developed a specialty line.