![]() Another benefit of pocketed coils is that they work extremely well to support specific pressure points on the body during sleep. Not only does this affect individual support, but it can affect a partner sleeping in the bed as well. With a traditional innerspring mattress, where the coils are all tied together and move in relation to each other, the fit is far less specific as pressure on one spring causes large sections of the mattress to depress. Pocketed coils offer a superior form of support because the coils respond to pressure individually, minimizing motion transfer and better contouring to the body. Every coil in the mattress is separately enclosed or wrapped in fabric, making them independent from one another. In a mattress with pocketed coils, each individual spring has its own pocket, hence the name. More is better to a point, but after a certain coil density, more does not improve comfort. Mattresses also vary in the number of coils they have per square foot of the mattress. They are made of steel springs, and come in different shapes and thicknesses or gauges. Pocketed Coil Mattressīefore we delve into the differences in coil mattress construction, it helps to know just a little about coils. He went on to secure a Canadian patient on his Marshall coils and became the founder of the Marshall Mattress Company using his patented technology. Pocket coils, where the springs are individually wrapped or encased in a sleeve, were developed in the late 1800’s by James Marshall, a British inventor. ![]() In 1871, coils were first placed inside a mattress resulting in the innerspring mattress. By 1865, these coils were used as a bed base, like a box spring, and patented. In the late 1850’s, steel coils were invented as supports for furniture, in particular for chairs. ![]()
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