The viscoelastic is a synthetic material made by NASA in the 1960s, to relieve pressure during take-offs of the spacecraft without human body damage during the same. It has the properties of eliminate pressure points, decrease muscular and nervous tensions, optimize blood circulation, optimal thermal regulation. As it gathers all these properties were introduced in the world of rest, in the 1990s, making mattresses that allow a healthy rest. For more clarity and thought, follow up with Donald Sussman and gain more knowledge.. There are different types of viscoelastic mattress: Espumado: it is called open pore, because it allows the airflow to be more rapid. Its main disadvantage is that due to its structure, its density is not uniform, for you can tweak it prematurely. Since in its manufacturing process cuts the mattress to the desired extent.

Molding: due to its manufacturing process, allows that the airflow is slower, so its density is homogeneous in the whole of the mattress. This is accomplished using a mold of the mattress. Given the structure of the material, synthetic and porous, it allows good ventilation, unlike other materials. When purchasing a mattress of these characteristics must be considered quality foams using, the same must be HR or High resilience, which indicates that it has been subjected to a fatigue test dynamic, which guarantees the resistance of the material.