Simmons Beautyrest World Class Rose Hill Mattress - King Plush Firm 1000 Density BeautyrestSuper Pocketed CoilSprings BeautyEdge Total Surround Edge Support High Performance Supportive Foam Layers Supportive Latex Foam Layer The (optional) Tritonfoundation with a Power Beamfor 20% greater strength and reduced motion. See our Mattress Set matching item for the Triton foundation.