Developed by their Managing Director, the first ever prototype of Mammoth\'s Elite Sport mattress is now on sale. Medical Grade� Foam and PostureCell� technology are layered on top of the very supportive foam core, which is similar to the construction of healthcare mattresses - over the years, these have proven to be beneficial to patients and provide a good night\'s sleep. The mattress will also give you extra relief from aches and pains.The Rise Plus Mattress also has a firm feel which is the result of using 40mm of Medical Grade� Foam-PostureCell� technology. It also has three comfort zones.