What are the different types of foams used inside mattresses?
Polyfoam is either uniform with a smooth, even surface or convoluted with an 'egg crate' formation. Uniform polyfoam can be ...
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The "knotty problem" of polyurethane foam
Polyurethane foam is created by mixing chemicals derived from crude oil with specific blowing agents to produce a flexible plastic with a cellular structure that has the potential to be soft ...