Originally designed by NASA for aircraft cushions, memory foam is made mostly from a type of plastic called polyurethane — as are most foams. But what makes memory foam “remember” the shape ...
However, if you enjoy the feel of traditional, dense foam, I recommend memory foam beds. Neutral polyurethane foam is a middle ground that seems to please most sleepers. If you purchase a ...
Since this memory foam is far from bouncy ... This mattress's supportive base layer is a thick slab of dense polyurethane foam, which is essentially standard, basic foam. 2.