I was in the US Army and suffered a back injury. My doctor started encouraging me to buy a firm mattress, even though that sounded like it would just make my back ache more, I started looking around. I had to of tried out fifty mattresses when I stumbled upon, or should i say laid upon, this wonderful bed. I immediately noticed all the support you'd expect from a firm mattress, yet I didn't feel uncomfortable like I thought I would be. In the past I always thought a softer mattress you be more comfortable, but boy was I wrong! After having this mattress for a year, I've noticed a tremendous difference with my back. I no longer suffer horrible stiffness in the morning, and I also don't wake up countless times due to an aching back. I've had my wonderful mattress for a year now, and will be buying this same mattress for the rest of my life guaranteed!! Comfort All the support you need, with the comfort you want!