We bought a king size Sealy mattress set from J. C. Penney. We used the mattress for few days and every single day we have woken up with back pain. We contacted J. C. Penney and they sent someone for inspection. That inspection was a joke. The person who came for inspection took pictures of the mattress. I was told by the J. C. Penney customer service, the inspection would involve checking mattress structurally with some device. The only device the inspector came with was a phone to take pictures. We later receive a call from J. C. Penney stating there are no damages to the mattress and hence they cannot do anything about the issue. I understand the mattress was not damaged visibly, but there is a reason why me and my wife both experience back pain sleeping on the mattress. Please beware buying anything from J. C. Penney.