I am 37, 6'1", 190 lbs and have lower back DDD. currently sleeping on a 7 year old firm pillow top, but back pain and morning stiffness has been increasing and wonder if I need a new mattress... what would the best kind and brand be for me? thanks.
It's less about brand these days. It's the specs that count and there are good choices and bad from almost every brand.
Pillowtops and memory foam are the things to avoid. With a tight top mattress, (non-pillowtop), you can always add a topper if you want more surface softness.
The toppers can easily be replaced when needed, without having to buy a new mattress. As the pillowtop part is the first thing to go, the latex foam topper solution is the only thing that makes sense.
Start off with the two-sided Therapedic Cameo in firm and add 2" of soft Talalay Latex foam for surface comfort.
Your DDD requires very firm support to retard the progress of your discs deteriorating to the point of becoming herniated.
Here are link to that mattress and to the latex toppers
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