The 12.5’’ iSeries NXG 2500 Plush mattress by Serta® delivers the next generation of comfort with a plush feel designed for side and combination sleepers. Crafted with wellness in mind, it helps promote healthy spinal alignment, reduces tossing and turning, and supports more restorative sleep. High-density NXG™ Memory Foam offers deeper contouring pressure relief, while Carbon Fiber Memory Foam provides reinforced support and channels heat away from the body for a cooler night’s rest. A high-density foam core with Ultimate Edge® Support ensures durable stability and consistent comfort from edge to edge. The cool-to-the-touch MaxCold™ cover provides immediate cooling the moment you lie down, creating a more refreshing sleep experience. Mattress protector recommended. Compatible with most adjustable bases.