Flexcell pocket 1000 is designed with individual pockets supporting a layer of latex. This mattress provides support to both the neck and spine to keep good body alignment, while aiding a peaceful and rest inducing sleep. The latex layer acting with the material cover to promote a cool, temperature controlled sleep The Flexcell is encapsulated in a stretchknit Outlast cover providing the pocket mattress with a temperature control making it breathable in the hot months and keeping you cool in the summer.