The iComfort 2000 Hybrid Firm mattress combines Carbon Fiber Memory Foam and Gel Active Max Memory Foam to help draw heat away from your body and promote airflow to prevent that hot, stuffy feeling when falling asleep. Meanwhile, the 1025 iComfort Hybrid Support System with BestEdge Foam Encasement conforms to your body, so you’re comfortably supported all night long. Serta iComfort 2000 12.5-in Twin Extra Long Hybrid Memory Foam/Coil Blend Mattress in White | 500804658-1020