MOLD GROWING

We purchased 2 love seats that turn into twin beds.  We upgraded to bobopedic foam mattresses.  They are used 3 or 4 times a year.  I was stunned when i turn the mattress over to see the outercover was full of mold.  Taking the cover off, the whole mattress was disgusting.  Bob's refuses to stand by their product.  The woman i spoke with "knew nothing about mold problems and since it was more than a year old did not offer any solution".  We always bought from bob's, now i will not buy from there again