I purchased the Serta Perfect Sleeper, Aura Firm Mattress in February.  It has been the best mattress that I could have bought for my money.  It is a high quality mattress with all the features that I have come to love about Serta previously.  The mattress has not need to be flipped at all since I purchased it.  Also it has not shown any signs of wear such as sagging. The fabric is a nice design that hasn't shown any dirt.  Also the fabric is soft and not at all scratch like some other mattresses on the market.  It also has the right  thickness so that I can fit all of the sheets over with...