Definition of Convoluted Foam

Meaning of the Term as it Pertains to Mattresses

What is Convoluted Foam?

The term convoluted describes foam with a ridged design that has peaks and valleys. Often called egg crate foam, convoluted foam is lighter than a solid piece of foam and allows for added airflow. Foam mattress toppers often use convoluted foam designs for added support. Health professionals frequently recommend convoluted foam toppers to bed-ridden patients because the shape helps prevent bedsores.

Using complex cutting equipment, mattress manufacturers can turn one solid piece of foam into two pieces of convoluted foam. Each half-piece takes up the same amount of space as one solid foam block; however, a solid foam block and a convoluted piece do not perform the same. Solid foam provides the most cushioning and support, whereas convoluted foam is lighter and allows for more airflow. Mattress manufacturers typically use convoluted foam in order to cut costs.