Serta iComfort Hybrid Mattresses. Carbon Fiber Memory Foam - Our exclusive Carbon Fiber Memory Foam system channels heat away from your body and provides exceptional strength for back and neck support.

Gel Active Max Memory Foam - This open celled memory foam helps promote airflow, so you don't have that hot, stuffy feeling when falling asleep. UltraCold System - This layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.

Serta iComfort Hybrid. Gel Active Max Memory Foam. This open celled memory foam helps promote airflow, so you don't have that hot, stuffy feeling when falling asleep.

Max Cold Cover. Made from super cool high-performance fibers for an instant cool-to-the-touch sensation. UltraCold System. This layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.

iComfort Hybrid Mattress. UltraCold System™ The layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.

*Only available in CF3000 and CF4000 models. Air Support™ Foam This exclusive air-cushion technology moves with your body and smartly contours around it to help alleviate aches and pains caused by pressure points. *Only available in CF4000 models.