The Sealy Pocket Hybrid is constructed with 1400 individual pocket springs, including 7 zones of motion and weight responsive pocket springs for total spinal alignment. Designed with adaptive technology, which is a 'dynamic response' textile that reacts to temperature and moisture. The hydro-functional polymers change shape boosting evaporation and helping to maintain a constant temperature. It also contains a 6cm Geltex filling for added comfort, exceptional body support and great pressure relief. It is totally breathable foam and combined with Sealy Smart Fibres (Purotex, Tencel and Adaptive) results in a naturally hygienic, cool dry sleep.