we purchased a mattress, about 2 yrs ago at Value Check furniture and flooring store, which has since gone out of business, and our mattress is sagged down on both sides and a lump in the center of it, we have tried to get a replacement before the store went out of business, with no results.How would we get a replacement, I tried everything i can think of with no results, we need someones help for this problem. read full review »