Say goodbye to sleepless nights with the Serta Perfect Sleeper Cobalt Calm Mattress. We designed our queen size Serta Perfect Sleeper mattress with a classic quilted pillow top and an 850-coil density system that delivers zoned comfort and pressure relief. This upgraded model comes with antimicrobial protection, a cooling mattress cover and cooling gel memory foam layers. At the bottom of our mattress, we have Our upgraded innerspring system that helps deliver long-lasting support. This Serta Perfect Sleeper has a firm pillow top feel that is perfect for back and front sleepers. At the top of our 14.5" mattress, we have our cooling mattress cover that keeps you feeling cool all night long. Beneath that is our PillowSoft Aire memory foam that provides both comfort and cool airflow. Next is our cooling gel memory foam provides additional cooling and comfort. We've added our support foam for even more support to help relieve pressure points. Browse Serta's innerspring mattresses online. | Serta Perfect Sleeper Cobalt Calm Queen Mattress - Innerspring | Firm Pillow Top