A dense Memory Foam mattress reacts with body heat and consequently within a few minutes the product forms around the shape of the body. There are 3 postures in which human’s sleep- back, stomach and side. The people use more than one position to sleep. The firm mattresses are recommended for people sleeping on back and stomach, as soft mattresses might harm their backs due to unnatural angles. Those sleeping on sides, softer mattresses are suggested.

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.

The main points to look out for are:
· The heat sensitive Visco-elastic memory foam moulds to the body improving posture and circulation.
· The weight of the body is absorbed by the memory foam preventing bed sores.
· The relaxed body has less desire to move and a more restful sleep is achieved.
The structure of memory foam allows air to flow freely which helps to maintain a constant mattress temperature. The qualities of Visco Elastic ensure the most comfortable sleep possible because the foam is breathable, non-irritating and assists in the dissipation of moisture.

For the best queen size memory foam mattresses out there in shops now – Memory Foam Mattress.com . Alternatively you should also go to Buying a twin size memory mattress topper

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