This 8 inch high density foam is below 2 inches of latex which is positioned near the sleep furface to help maintain a consistent sleeping surface temperature throughout the night. IT works by absorbing body heat & energy released from the body. The result is a consistently comfortable sleeping surface temperature that helps to minimise sleep disturbances. This 8 inch mattress provides superior pressure point relief so that you can sleep comfortably with less tossing & turning, allowing you to wake up feeling refreshed & prepared for tackling the day ahead.