KALMA memory foam pillow

The density of the viscoelastic material is translated into the quantity of material it contains per cubic metre (kg/ ^m3 ). Depending on the density of the viscoelastic used to manufacture mattresses, they will offer different benefits.

It could be said that the higher the density, the greater the viscoelastic sensation and the greater the degree of adaptability, therefore, the better the results. However, there are those who prefer medium adaptability and therefore opt for a medium density.

• The lowest density that can be found in viscoelastic cores ranges around 18-20 Kg/m ³
• We could talk about a medium density when it comes to viscoelastic of 30-40 Kg/m ³
• a high density, when it exceeds 50 Kg/m ³ .

The performance and density of this material are usually certified by independent institutes and laboratories. It is important that a mattress has the following characteristics: certificates that guarantee the quality of the product and the materials it is made of.