There are several types of foam that are commonly used in mattresses:
Polyurethane foam: This is the most common type of foam used in mattresses. It is a synthetic foam that is made from a combination of chemicals and has a spongy, bouncy feel.
Memory foam: This type of foam is also known as viscoelastic foam. It is made from polyurethane, but has the ability to contour to the shape of the body, which makes it great for pressure relief.
Latex foam: This type of foam is made from natural rubber and has a springy, bouncy feel. It is often used as a top layer in mattresses because of its ability to contour to the body and provide good support.
Gel foam: This type of foam is made from polyurethane and has a gel-like substance mixed in to help with temperature regulation. It is often used as a top layer in mattresses to help keep the sleeper cool.
Hybrid foam: Hybrid foam mattresses are made from a combination of two or more types of foam. They are designed to provide the benefits of multiple types of foam in one mattress.