The Heartland Series is the big brother to both the Saranac and the Shelton Traditional models. The Heartland features the same Posturized 540 Spectrum Coil Innerspring system that will promote the proper spinal alignment, as well as gel infused lumbar pad that will help dissipate body heat and promote a cooler sleeping surface. The Heartland is available in 3 choices of comfort Firm, Plush and Pillowtop.