Visco elastic foam, or memory foam mattress, as it is more commonly called has become very popular in the last several years. Some companies have set up shop in malls, offering products from pillows, neck rolls and memory foam double mattresses.
Visco foam was initially developed by NASA to relieve the discomfort of extreme pressure created by G-force during shuttle take-off and landings. The product was never actually implemented into the space program but it sure develped the product that would soon change the way a lot of people sleep.
Visco foam was initially developed by NASA to relieve the discomfort of extreme pressure created by G-force during shuttle take-off and landings. The product was never actually implemented into the space program but it sure develped the product that would soon change the way a lot of people sleep.
It was extremely expensive to manufacture and thus impractical for many years to market to the public. Many other companies have since joined the memory foam mattress band wagon and the market has become flooded with products such as mattresses, pillows, and memory foam topper.
There are different degrees of density and thicknesses to these products. The foam comes in 2 lb. to 5 lb. density and the memory foam toppers range in thicknesses from 1-5 inches. The best of these is the higher density and the thicker memory foam layer.
A larger, heavier person would probably be most comfortable with a 5 lb. density rating, while a lighter person may feel like they are sinking in quicksand. So to recap: Thickness, density, and ILD are all things to consider when shopping for memory foam mattress products. If you're over 220 lbs. you might bottom out on a memory foam mattress that only has 2" to 3" of memory foam on the top layer.
If you're extremely light, 110 lb. to 125 lb. you can get by with a slightly less dense memory foam but the density has a lot to do with how long the material will hold up, so you should go as dense as you can while still getting the comfort you like.
There are different degrees of density and thicknesses to these products. The foam comes in 2 lb. to 5 lb. density and the memory foam toppers range in thicknesses from 1-5 inches. The best of these is the higher density and the thicker memory foam layer.
A larger, heavier person would probably be most comfortable with a 5 lb. density rating, while a lighter person may feel like they are sinking in quicksand. So to recap: Thickness, density, and ILD are all things to consider when shopping for memory foam mattress products. If you're over 220 lbs. you might bottom out on a memory foam mattress that only has 2" to 3" of memory foam on the top layer.
If you're extremely light, 110 lb. to 125 lb. you can get by with a slightly less dense memory foam but the density has a lot to do with how long the material will hold up, so you should go as dense as you can while still getting the comfort you like.
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