Five Tips to Purchasing Memory Foam Mattresses - By: Jessica Thomson

Mattresses made of visco-elastic foam are called Memory Foam Mattresses. This type of foam is highly heat sensitive and thus while sleeping on such mattresses, your body heat forces the foam to yield around the contours of your body generating a feeling of snugness and comfort. Commercially established in the 90s, visco-elastic mattress have captured the top spot in the mattress industry today.
Here are few basic tips for you
Density: The density of visco-elastic foam used in the mattress should be the primary concern when purchasing a memory foam mattress. Higher density will ensure longer life.
Density is measured by the weight of cubic feet of memory foam. Quality of the foam is proportional to the density of the foam. Interaction of all these factors will result in getting the best support and comfort for the mattress. A density of 5lb to 7lb per cubic feet of foam is generally recommended.
Thickness: Thickness is as important as density. They should be thick enough (generally 3” thickness satisfies) for your body to sink and the visco-elastic foam to conform to your body contour. Also, it is to be checked whether the mattress lends enough support to your body to make you feel comfortable.
The thickness of memory foam can be calculated by the total weight of the mattress vis-a-vis the total cubic feet of the mattress, i.e. in pounds per cubic feet. Most recommended are 5.3 to 5.9lbs to cubic feet of mattress thickness. Less than 5.3lbs and more than 5.9lbs will not be able to provide the best support for your lower back, hip and shoulders. Another important aspect is the top layer of the mattress. A 3.5 inch layer of memory foam is necessary to provide the best support and comfort to your body.
Indentation Load Deflection (ILD): Another indication of their quality of is their ILD. This ILD can range from 6 to 40 and 10 to 16ILD is found in the most good quality memory foam mattress. A comfortable mattress has several layers of foam with each layer having different comfort index. The working of the layers jointly is what makes the mattress more comfortable.

Comfort: The yield index of a memory foam mattress against pressure is measured in mmHg units. Blood circulation while sleeping should not be a problem. Hence for relieving pressure, a standard of 32mmHg or lower has been set up by the Health Care industry.

Heat Sensitivity: This important aspect of a mattress should not be ignored while making a purchase. This is one unique feature that makes them so comfortable. This mattress will absorb the body heat and become softer during warm weather and firmer during cooler days. However, if you find a mattress adjustable to the seasonal temperature, then purchase it.
There are several Memory Foam Mattresses brands available in the market. Check out a few brands before you select a mattress for your bed.

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