If you need to find a memory foam company go onto Google and price about. If you use the Firefox browser you can open up multiple tabs. That way you can work back and forward between the different supplier and choose the cheapest memory foam mattresses.
No one needs to convince anybody of the effectiveness of these mattresses. Just look up any of the thousands of memory foam mattress reviews you can find of from the major brands. Hypnia, seem to get mostly positive reviews. They are great for comfort and support.