The viscoelastic material, flexible polyurethane, was developed by NASA with unique and innovative ways to relieve body pressure properties. This type of synthetic material was born as a direct result of the space program in the sixties, although it was in the early 90s when the researchers were able to incorporate it into domestic use. The viscoelastic material incorporated into articles of rest initially was used mainly in hospitals, but in the recent years its marketing has become so widespread that this type of mattress is already found in many homes. Among the properties of the viscoelastic material stands out its great adaptability and its degree of medium firmness.
The memory foam mattresses are composed of several parts of variable densities made with a foaming called High Resilience, from 18 kg/m³ in basic range and may reach up to 90 kg/m³ and it depends upon the firmness that the sleeper wishes to have. This density determines that the mattress is softer or harder. Therefore, an average density is more adequate than a very soft or too hard. In the first case, you can have result in insufficient support for the body and healthy alignment of the spine and in the second case, the hardness of the material can make weightlessness, characteristics of this material disappear, plus breathability is almost null, since high density does not allow the pores to be just open for air to circulate.
Memory foam mattresses are sold mainly in specialized stores, furniture stores and large supermarkets, although the growing trend is buying memory foam mattresses online for the reason that the consumers have a trial period that gives them confidence to try it for several days and to verify that it is really suitable for their rest.
The main channel of distribution of Memory foam mattresses are the furniture stores and specialized websites, where the firstly purchase of the bedroom furniture is produced, along with the mattress and, generally, making a basic investment as it is a complement. Then there are the replacement sales when you change only the mattress, which is produced in other establishments investing more in health and comfort. The market is divided equally between the first purchase and the replacement. As for the specialized trade, the traditional mattresses have given way to high-end establishments that include electric beds, bedding, and even home furnishings. Other sales channels are hospitality and institutions, which includes hospitals, prisons and armed forces.