Bests & Worsts Reviews from Amazon

I have had lower back pain for over a year now. Iv gone to PT for it, Iv bought a new chair with new seat and back cushions for work. Nothing helped. Then I bought a new mattress, it was recommended I buy a firm mattress with a plush top. I still had lower back pain after all that. I added a memory foam topper to my new bed, but that did nothing. Then I bought this mattress topper and put it on top of the memory foam and my back pain is almost completely gone. Even after 2 weeks I can still feel the difference with my back.