Correct!
Latex is a foam, polyurethane, viscoelastic polyurethane are examples of foams as are HD and HR foams are foams. There are others that are used in mattresses. Each have their own distinct feel, function and characteristics. There are several others in addition to the list. There is latex alternative foams that are “memory foams” that act like latex and synthetic latex.
Polyurethane Foam (PU Foam):
This is one of the most common types of foam used in mattresses. It’s a type of synthetic foam that comes in different densities and firmness levels.
Polyurethane foam provides support and comfort, and it’s relatively affordable compared to other types of foam.
Memory Foam (Viscoelastic Foam):
Memory foam, also known as viscoelastic foam, is a high-density foam that contours to the shape of your body when you lie down.
It’s known for its pressure-relieving properties, as it distributes weight evenly and reduces pressure points.
Memory foam mattresses are popular for their ability to provide personalized comfort and support.
Latex Foam:
Latex foam is made from the sap of rubber trees or synthetic latex materials.
It’s naturally breathable and resilient, providing both comfort and support.
Latex mattresses are known for their durability and responsiveness, as they quickly bounce back to their original shape.
High-Resilience (HR) Foam:
HR foam is a type of high-density foam that offers excellent support and durability. It’s often used as a base layer in mattresses to provide structural support and prevent sagging.
HR foam is known for its ability to maintain its shape and resilience over time.
High-Density (HD) Foam:
HD foam is similar to HR foam in terms of density and support, but it may have different characteristics depending on its formulation.
It’s commonly used in mattress comfort layers to provide firmness and support.
Gel Foam:
Gel foam contains gel particles infused into traditional foam to enhance cooling properties and provide additional support.
It helps regulate temperature and can provide a cooler sleeping surface compared to traditional memory foam.
Polyethylene Foam:
Polyethylene foam is a lightweight, durable foam often used in mattress encasements or as a comfort layer.
It provides cushioning and support while being resistant to moisture and mold.