New Memory Ortho 2000. Excellent support and comfort. With 2000 pocket springs, a 6 gauge rod edge and 75mm of memory foam, this is a great mattress for bad backs. A layer of Highloft Polyester above the memory foam reduces the warmth that memory foam produces. The cover is Imazasoft a new breathable material with a soft touch feel. And buy this New Memory Ortho 2000 Was £479.00 Now £449.00.