Siena Super Firm Hybrid Mattress

Created with our unique pocketed “quad-cluster” coils for enhanced support and motion isolation, a layer of firm high density foam on both sides, a double-sided/flippable design to increase mattress longevity The 956 Quantum Edge Pocketed Coil System creates an edge-to-edge sleep surface that combats any "roll-off" Double - Sided (can be rotated and flipped) Adjustable base friendly One layer of firm foam on each side of the mattress helps aid in keeping the sleeper's spine in straight alignment throughout the night Made in America