Guide
Open-Cell Memory Foam: A Useful Feature, Not a Cooling Guarantee
Understand open-cell memory foam, airflow claims and what the term can and cannot tell you.
Open-cell memory foam uses a cellular structure intended to allow air to move through the material more readily. The term can explain part of a mattress's design, but it does not guarantee a cool sleep experience.
Evaluate the whole mattress
Foam formulation, layer thickness, cover, room temperature, bedding and how closely the mattress contours all influence temperature. Treat manufacturer airflow testing as product-specific evidence rather than a universal rule.