5LB SENSUS®3"QUEEN MEMORY FOAM MATTRESS PAD W/ZIP COVER

Is this the same foam NASA uses? Not exactly. In fact unless one were able to view NASA's original specifications drawn up perhaps some 40 years ago, it is virtually impossible to precisely know what formulation they came up with or what density may have been used. We seriously doubt that any visco-elastic foam currently being produced anywhere is exactly the same. Unless a person experiences tremendous G-forces while sleeping or lives in a weightless environment, misleading and ridiculous NASA claims should not be your primary criteria for purchasing visco-elastic memory foam.

So all memory foams are not the same, correct? That is correct. Every manufacturer has it's own recipe ! The product which we sell, is a special formulation in which high-density (5.0 pound) visco-elastic foam with just the right degree of compression makes for the most resilient, high quality and comfortable pad that we know of. Whether buying memory foam or any other type of foam product can be tricky. Tricky because, as you will learn later, there are two factors involved in evaluating the quality, feel and durability of foam. Density and compression. Low-density foam pads are just that. Low density: Not much mass. Not much weight. More air than foam. For example, the foam used to line a computer case or camera bag is firm but yet very lightweight. This foam has been designed for impact not continued support of weight. This foam is high in compression but low in density. This helps to explain why the cheap foam mattress pads purchased at discount houses and department stores usually don't work very well or last very long. They are cheap for a reason. You're buying a lot of hot air.

Compression? What's that? Compression is mainly what determines the firmness of a particular piece of foam. It is the ratio of a foam's ability to support force at different levels. It may also be described as the ILD (Indentation Load Deflection). It is generally measured as the force (in pounds) required to compress a 50-inch indentor foot into a 4-inch thick sample 25% of its overall height. For example,  Tempur-pedic's © memory foam is approximately a 15 ILD. Compression simply determines the degree of firmness of the product.

So what is density? Density is a measurement of the mass per cubic unit volume. It is measured and expressed in pounds per cubic foot (pcf) or kilograms per cubic meter (Kg/m3 ). Density is largely the determining factor in judging the quality of foam products. The lower the density the lower the quality, thus reducing the durability and the life expectancy of the product. However, some foams are densified by loading them. This occurs when some manufacturers "load" their foam with additives such as chalk dust, marble dust, barium sulfate, clay or purified sand from oil field drilling operations. These inorganic materials are added when the foam is in its liquid state. These fillers are not chemically bonded to the polymers; instead, they are mechanically trapped within the molecular structure of the foam. Loaded or filled foams are most always weak in strength and durability. If you've ever owned a sofa or foam mattress, which really flattened out and became dusty and gritty when it broke down, it was most likely loaded foam. Buyers of memory foam pads should be wary of these type products and there are some on the market today. None of the foam products we sell are loaded or filled in any way, we only sell premium first quality.

Is a memory foam mattress topper what I really need? If your existing mattress has broken springs poking through or an extreme sag, a memory foam mattress pad will help but you probably need a new mattress as well. If your mattress is in relatively good shape but just too hard, you're an excellent candidate for one of our 3 inch or 4 inch memory foam mattress toppers. It just may save you the expensive cost of replacing the entire set and give you the best pillow top mattress in town. (for a fraction of the cost).