The Leesa Original Mattress boasts superior airflow thanks to its breathable knit fabric cover and premium-quality foam. An excellent choice for hot sleepers, the first layer of plant-based GreenFlex® Foam has an open cell structure for cooling comfort throughout the night. A deep memory foam recovery layer provides pressure relief for hot spots like shoulders and hips, and a durable base foam layer provides long-lasting support for all body types and sleep positions.