When you set out to buy a memory foam mattress, you should have a thorough knowledge about the product itself. These mattresses cost money and you should arm yourself with information to make sure that you are getting your money's worth.
What Is Memory Foam?
This is basically a synthetic polyurethane foam to which chemicals are added. The material was originally designed for the use of astronauts going to space in their rocket ships. The chemicals increase its weight and density. Different combinations bring about variations in the density and texture of the material. This can be understood by looking at the foam's grading, which will be discussed below.
The foam basically molds itself to fit the body contours precisely. This ensures that the joints and spine receive optimal support during sleep. It is temperature sensitive and becomes softer at higher temperatures; it also rebounds to its original shape quickly.
Grading of foam is done in a number of ways. This includes checking its density in pounds per square foot. Most brands of memory foam have a density of 4 or 5 pounds. Some may go down to as low as 2 to 3 pounds. The ILD rating means the Indentation Load Deflection rating, which tells you about the firmness or softness of a mattress. What you should keep in mind is that as the ILD rating of a mattress increases, it becomes firmer.
Grading can also be done by taking resilience into consideration. This checks the springiness of the foam. The abbreviation H.R. shows that the material is highly resilient and hence more durable when it comes to withstanding compression forces. The tensile strength rating may also be mentioned. This indicates the extent to which the foam can be stretched. This value is not as useful as the above indicators.
Practical Considerations
Depending on the manufacturer, you may notice that the memory foam you bought has a peculiar smell. This can last from a couple of days to weeks. It may bother people who are sensitive to smells. To combat this, all you need to do is keep the room well ventilated and wash the sheets frequently. If you have an ozonator machine, that can be used effectively to get rid of the smell.
A good memory foam mattress does not need a box spring support. Most branded manufacturers place a sturdy sheath of polyurethane to give support to the upper layers. If you want to increase the bed's height you can place it on an even platform base. You can test the item you are planning to buy by checking the degree of indentation at various parts of the mattress when you sit or stand on it.
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