Serta Perfect Sleeper Cobalt Calm Extra Firm 12" Twin XL Mattress

This mattress features a three-zoned coil design, ensuring targeted pressure relief and essential support. The Cool Twist® Gel Memory Foam adapts to your body's shape, enhancing comfort. Additional cooling layers and support upgrades are available for an even more personalized sleep experience. Perfect for those seeking an ideal blend of comfort and innovation. Serta®Read More