Guide
Does Memory Foam Sleep Hot? It Depends on the Design
Learn why some memory foam retains heat and how to interpret open-cell and cooling claims.
Memory foam can sleep warm for some people because close contouring may reduce airflow around the body and foam can retain heat. Performance varies by formulation, mattress construction, bedding and the sleeper.
Open-cell foam
Open-cell formulations aim to create more airflow through the foam. Layla says its Essential's OpenCell+ foam circulates three times the air volume of conventional mattress foams; that is Layla's test claim, not a MattressDecider lab result.
Continue with open-cell memory foam explained.