Perfect Sleeper® Cobalt Calm Extra Firm

Featuring a three-zoned coil design, the Perfect Sleeper Cobalt Calm mattress from Serta offers pressure relief and extra-firm support where you need it, with a Cool Twist® Gel Memory Foam that contours to your body. • Mattress top: tight top • Mattress type: innerspring • 850 Edition Custom 3 zoned support coil system of individually wrapped coils provides contouring, cradling support from edge-to-edge, minimizing the impact of your partner’s movement • Breathable Cool Twist® Gel Memory Foam gently cradles your body while promoting enhanced airflow • CoolFeel™ fabric creates a luxurious, breathable cover with a cool-to-the-touch sensation from technology that is plant-derived • Antimicrobial mattress protection keeps your mattress fresh and clean from odor causing bacteria; does not protect users against bacteria, viruses, germs or other disease organisms