We purchased our mattress set in June of 2006, while I was pregnant. I demanded a firm mattress, mostly because I'd had bad experiences with squishy mattresses, and I couldn't get out of the bed as big as I was getting with this pregnancy. We were shown the Katherine Firm set, and purchased it. About a year later, both my husband and I were complaining of back pain when we woke. I could not believe that after only a year, my mattress was hurting me the same way my 10 year old set had done before we had gotten rid of it. No way! I... read full review »