The Cosmic Miracle Lux Hybrid Tight Top Mattress combines the support of innersprings with the comfort of advanced foams. Featuring SN 75% Dark Cooling fabric for lasting temperature regulation, it includes Talatech copper-infused latex for responsive support and Calm Cooling Comfort gel memory foam for pressure relief. An advanced edge coil system ensures durability and flexibility, even on adjustable bases, with a firm, supportive perimeter.