Invest in your sleep with the Serta Perfect Sleeper Cobalt Calm Mattress. We designed our queen size Serta Perfect Sleeper mattress with a classic quilted 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 delivers long lasting support to keep you comfortable all night long. This Serta Perfect Sleeper has a plush feel which is ideal for side sleepers. At the top of our 13.25" mattress, we have our cooling mattress cover that keeps you feeling refreshed and cool all night long while preventing heat buildup. Beneath that is our PillowSoft Aire memory foam that provides both comfort and cool airflow. Our cooling gel memory foam provides even more cooling while our support foam relieves pressure points and adds additional support. Buy an innerspring mattress from a trusted mattress brand. | Serta Perfect Sleeper Cobalt Calm Queen Mattress - Innerspring | Plush