I bought this Matress because I have back problems. It was fantasic for the first year. I was pleased with myself for purchasing a Matress that was giving me relief from my back pain, but after a year of comfort the Matress started sinking in the middle and lost its shape. I can no longer sleep on this Matress. I have to sleep on the couch. Im doing more research on Matresses for heavyweight people before purchasing a new one. If you are a larger or heavy person, I dont recommend this Mattress for long term sleeping or if you have back issues. I thought a pro to buyinh this Matress was that you could flip the Matress to rotate and it and it has pocket coils for extra support. It also has a pillow top for extra support to conture to your body, but these extra so call Pros dont last long term for heavyweight people. Its a quick fix for back problems, but long term sleeping the Matress loses it support. I know now with reshearch that heaver sleepers need better Matresses that are going to keep there support for more than 5 years.