What is Memory Foam?

Developed in the 1960's by NASA for the space programme, visco-elastic foam, sometimes called memory foam, was originally used to absorb the tremendous effects of G-Forces that astronaut's bodies experienced as they exited and re-entered the Earth's atmosphere.

Memory foam is heat sensitive. Microscopic memory pockets react to body heat and weight. This reaction allows the foam to mould to the body contours giving correct alignment of the spine. Polyurethane foam does not have the ability to respond to temperature.

Weight and pressure distribution is maximised when the whole body comes into contact with a memory foam mattress. If you push your hand into its surface it will leave an impression for several seconds after you remove your hand. Ordinary foam regains its original shape immediately after your hand has been removed; it has no memory at all.

The pressure-relieving qualities of memory foam can best be demonstrated with a ball-bearing. When dropped onto a normal foam mattress the bearing will bounce high, however, when dropped onto a memory foam mattress the bearing will land with a thump! This is because the memory foam has absorbed nearly all the downward pressure and clearly shows why the memory foam has pressure relieving properties. A memory foam mattress needs no turning and due to its comfort can reduce body movement by up to 80%. Many medical Institutions endorse memory foam for its unique properties which help and even prevent pressure sores and improve circulation.