Memory Foam is an open celled, body heat and body weight sensitive material, which was originally designed to relieve the immense pressure G-force exerts on Astronauts during space flight.
Memory foam sometimes called "visco elastic" or "slow release foam" was originally developed by scientists in association with the N.A.S.A space project. Scientists were asked to invent a material that would absorb the tremendous pressures that astronaut's bodies were subjected to as they exited and re-entered the Earth's atmosphere.
The new foam-like material proved to be so successful that its potential was soon recognised by medical science. It is now the most effective substance for relieving pressure points caused by the weight of a human body in its relaxed state.
Subsequently it is now used in hospitals throughout the world to prevent pressure sores, which can easily develop when the body lies still for many hours i.e. during an operation. Its unique elastic properties allow it to automatically sense your body weight and temperature, it then responds by moulding to your exact shape and position. When you turn in bed it quickly recovers and re-adjusts, providing you with total support throughout the night.
Imagine for a moment that you are lying on your bed at home. Now instead of lying directly on your mattress you now have a layer of memory foam beneath you. As you relax you start to feel your body gently sinking into the memory foam. Each individual foam cell immediately starts to respond to your unique shape and body temperature, cradling the natural hollows in your neck, shoulders, back and knees. Feel your joints and muscles become totally relaxed, giving you a wonderful sense of weightlessness as you gently drift off to sleep.
Compare that feeling with the comfort of an ordinary mattress. Whether it is pocket sprung, coil sprung, latex or ordinary foam. All these mattresses insist that your body moulds to them. They exert upward forces that cause pressure to build up around your hips, shoulders, elbows and knees. This pressure causes a reduction in blood supply and inevitable discomfort. The small of your back is left stranded in mid air on a firm mattress or bows uncomfortably on a soft mattress.
For a back sufferer this will be very uncomfortable indeed. Feelings of discomfort will force you to alter your sleeping position, you may even wake up in the process. Another night's sleep ruined!
Simply because of its ability to absorb pressure, memory foam can significantly reduce the need to turn in bed. If you suffer from back trouble or impaired movement this will really make a huge difference to your quality of sleep.
|Memory foam has several unique properties that in combination provide the most comfortable sleeping experience available on the market today! |
It has a remarkable ability to absorb downward pressure and force.
Memory foam mattresses have now become far more popular and widely available on the domestic bed market. If you are looking to buy a memory foam mattress you may have discovered that they are now available in different grades. These grades are called densities. The density of memory foam is calculated in Kilograms per cubic metre. This basically means that if a mattress has a memory foam layer with a density of 50Kg a block of 50kg memory foam in a metre cube weighs 50kg. A block of 40kg memory foam of the same size for example would weigh 40kg. The higher the density of memory foam the smaller the air bubbles are in the foams structure. This is not always an advantage as this can cause heat build-up within the mattress.
Memory foam has the ability to react to the heat given off by your body, if the density of the memory foam is too high the air holes in the foam become very tiny and this reduces the ability for the foam to breath. Heat can then get trapped within the foams structure which can cause you to overheat during the night. We recommend that for an ideal combination of support and comfort a memory foam density of between 40Kg and 65kg is ideal for a comfortable nights sleep.
What Depth of Memory Foam Do I need?
When choosing a Memory foam mattress you will also need take into consideration the depth of memory foam that the mattress contains. Some mattresses have as little as 1cm of memory foam material on the top surface. This will not provide any benefit accociated with memory foam. To experience the true qualities of the memory foam you will need to choose a mattress with at least 5cm of memory foam, however a depth of 7cm to 10cm is recommended for maximum support and pressure relief. Please bare in mind that a 40kg memory foam will not offer as much support as a 60kg memory foam and will not preform as well over time. If you are a back sufferer or have a medical condition such as Arthritis it will be well worth purchasing the best mattress that you can afford.
I have heard memory foam makes you feel too hot?
If you are worried about getting to warm in bed, majority of memory foam mattresses now have "Coolmax" or "Outlast" covers. The fabric has been specially engineered to disperse heat and moisture, helping to keep you cool dry and comfortable whilst you sleep so you sleep soundly and wake in the morning feeling rested and refreshed.
Memory Foam is endorsed by doctors worldwide - if you think a memory foam mattress or overlay would medically benefit you why not speak to your doctor.
This diagram shows the areas of the body that can be affected by a build up of pressure caused by lying on an unsuitable mattress surface.
1 Head - With the correct support, neck muscles will remain comfortable helping to prevent tension headaches.
2 Shoulders - Proper bed posture can help to avoid the risk of fibrositis in shoulder muscles
3 Pelvic Area - The support from memory foam gently cradles the pelvic area avoiding aching or pain
4 Calves - By evenly spreading pressure you can prevent circulatory problems which can cause swollen calves and feet.
5 Heels - Memory foam mattresses help to avoid problems of soreness and chaffed skin
6 Hips - Memory foam mattresses reduce the risk of swollen and painful hip joints by reducing interface pressure.
7 Back - Keeping your back properly aligned by correct mattress support can greatly reduce the chance of back pain