Infusion of bedding foams with gel was first used in Europe, and is now widely used in the United States. Gel infusion was first introduced to modify the support properties of the foam. Later it was promoted as making memory foam cooler. What is gel? Gel can be called a semi-solid. It is both solid and fluid. The International Union of Pure and Applied Chemistry defines it as this: “Gel: Nonfluid colloidal network or polymer network that is expanded throughout its whole volume by a...