The Serta Sahara mattress offers firm support with advanced cooling and comfort features. Designed with 1317 Pocket Coils in the King size, it provides exceptional motion isolation and targeted support for a restful night’s sleep. The CoolFeel Fabric keeps the surface cool and breathable, while the GelPlus Foam and GelPlus Gel Memory Foam layers deliver pressure relief and temperature regulation. The Lumbar Support Core targets the lower back for added comfort, and the BestEdge Foam Encasement enhances the mattress's durability. Additionally, antimicrobial fibers help keep your sleep environment fresh and clean.