Definition of Density

Meaning of the Term as it Pertains to Mattresses

What is Density?

Density is the weight of foam as measured per cubic foot. Foam density directly affects mattress quality. Denser foams feature stronger cell structures, which increase mattress durability and overall longevity. Higher density foams also provide more consistent comfort and enhanced support.

Shoppers sometimes confuse density with firmness. The two are not related, as mattress manufacturers can adjust density and comfort level independently. As a result, high-density foams can feel extremely soft and low-density foams can feel very firm.