The Kingsdown Ellerman from the Passions Collection creates a wonder support including extra center support provided with 20% more coils in the center 1/3 of the mattress. All edges are supported by full body surround foam with airflow channels to allow air to circulate freely throughout the mattress to keep the sleeping surface from becoming hot. Silent Partner Construction uses a center foam strip between sides to prevent bed quake. Queen coil is a 1791 custom zonized unit. Gel Fibers in the quilting provides a comfortable sleep surface. Gel infused foam keeps the top panel cool from body heat build up. 100% Latex foam provides durable comfortable support layer.