Reclaim your nights and wake refreshed for your days with the reimagined Tuft & Needle Original mattress. Combining T&N Flex foam and our original, T&N Adaptive foam, this mattress offers exceptional cooling, responsive comfort and bounce-back support for a refreshing sleep experience. Quality cover with cooling technology - A soft, quality cover features cooling technology to promote a cool sleeping environment T&N Flex foam - A highly-breathable, fast-recovery foam responds to your body weight, firming the deeper you settle into the mattress for responsive comfort, unique to you T&N Release foam - A ventilated foam enhances pressure relief for all-night comfort T&N Adaptive foam - A breathable, open-cell foam, infused with cooling gel plus heat-conducting graphite, is designed to help wick heat away while providing contouring pressure relief and responsive, bounce-back supportBase Foam - This durable layer helps create a supportive, stable foundation. The T&N Original mattress provides up to 7% better airflow for a refreshing night's sleepcompared to the same mattress with a standard memory foam in the place of the Flex foam. Size: medium. Material: Polyester Blend.