The heat retaining properties of the foam makes pain more bearable for a patient suffering from back injuries. Thus memory foam is also used in medical treatments of patients developing "bed sores" and for people suffering from postural problems. Besides the use of memory foam in a mattress, nowadays it is also used in pillows, positional sleep aids, office furniture, automobile seat padding, footwear, infant cribs, car seats, wheel chair cushions, computer carrying cases and many more.
A memory foam mattress is usually denser than an ordinary foam mattress. This makes it more supportive but also heavier. It is often seen as a good compromise between the comfort of a soft mattress and the supportiveness of a firm one. Memory foam mattresses often sell for more money than traditional mattresses but they may last longer due to their resistance to parasites such as dust mites.
Most memory foam has the same basic chemical composition; however the density and layer thickness of the foam means different mattresses feel very different. A high density mattress will mean it returns to position more slowly and will be firmer; a lower density will feel more like a normal foam mattress. Very high levels such as 5.3 lbs are used infrequently in mattresses, however Tempurpedic have been known to make them. The amount of memory foam also has an effect on the capabilities of the mattress or topper. Anything less than 2 inches will not have much of an effect, whereas a 6 inch block would be too soft and dense to sleep on comfortably. Each mattress, therefore, is a combination of its height, density, and type, each of which will have different properties.
Pressure relief is the biggest advantage of using a memory foam mattress, and this can be tested reliably. The other main advantages of this mattress are an increased comfort and better sleep quality, but unfortunately comfort cannot be tested as it is a very personal aspect. Traditional mattresses fail to distribute the human body weight evenly over the surface as its build upon a number of springs, all exerting same amount of pressure on the body. Body being softer in nature as compared to the firm mattress, is incapable of pushing back with the same force. This insufficient pressure point relief consequence in poor blood circulation and back aches you confront every morning.
Spring mattresses rely on springs that force upwards pressure against the body. This causes the body stress and results in a restless night. Memory foam works in a completely different way; it absorbs the weight of the body, whatever shape or size, and forms a cradle that moulds to the body contours without pressure or force.
To get your best memory foam mattress topper go to
Cheapest Memory Foam Mattresses. Alternatively you should also check out
Getting a king size memory foam mattress