Treat yourself to all night cool, comfortable sleep with the Serta Arctic Premier 14.5-In Plush Memory Foam Cooling Mattress. Serta Arctic has 15x better cooling powered by exclusive Reactex technology. Its combined with layers of premium, body-hugging memory foam to provide all-night cooling and comfort. Serta Arctic Premier 14.5-in Soft Twin Extra Long Hybrid Memory Foam/Coil Blend Mattress in White | 500430828-1020