Memory foam air mattresses are developed using visco-elastic foam material that nicely conforms to each person's shape and returns to a normal position once the body pressure is lifted. That's why it is called a memory foam air mattress. It allows for body weight pressure to be evenly distributed on the surface of the foam and to adjust accordingly fitting the movements of the body. What gives this piece of foam memory is the addition of certain chemicals -- synthetic polyurethane foam material to increases the weight and compactness of the foam creating what is known as a non-toxic visco- elastic foam material. To determine if a material is visco-elastic, it has to be sensitive to temperature and have the ability to bounce back to its original shape. Memory foams are graded by visco-elasticity and sturdiness by determining the following grading system: Weight (density on pounds per square foot) - the higher the density the more visco-elastic it will becomeILD rating (indentation load deflection) - this will indicate how hard or soft a material is and the higher the ILD, the firmer the foamResilience - this measures the foam's springiness. The higher the resilience, the better.Tensile - this refers to how much the foam can be stretched and elongatedThe following are a few qualities to watch out for when looking for a good memory foam air mattress: Good contouring ability meaning it should be able to shape and disperse your body weight accordinglyA good memory foam air mattress will not need a box spring underneath to make the mattress feel good.Check out the warranty that the company offersMemory foam air mattresses come highly recommended for those who suffer joint pain, body aches and for those who have the habit of sleeping on their back or stomach. |
