I have a bad back, I like a soft bed, hubby likes a hard bed, neither was ever happy.
We bought the Sleep Number bed and never looked back. My mom stayed with the kids for a weekend and slept in our bed, went out the next week and bought herself one. Then she bought one for my dad (he snores, she won't stay in the same room with him). A friend was over, tried our bed, now she has one. I know there are pros and cons to all products, but I wouldn't trade my bed for any other bed on the market.
Just my 2 cents.
D