After purchasing the complete Stearns and foster king size mattress set, I noticed that ist had began to sag on one side. i contacted the store I purchased it from and voiced a complaint. I was told by Ms. Valerie and others at the corporate office, and the warranty office that there will be an additional charge of $99.00 for replacement after they come out and investigate the mattress. The $99.00 fee was not included in the warranty nor was it vergally discussed. Therefore, I believe that the above-mentioned company is in breach of... read full review »