Treat yourself to all night cool, comfortable sleep with the Serta Arctic Mattress with box spring set. Powered by Serta’s exclusive Reactex technology, a unique three-part cooling system that pulls heat away from the body and deep into the mattress, so you sleep cool all night long. It’s 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 with Boxspring Included in White | 500430828-9920