Serene Sky Firm by Serta
Talk about a lot mattress for your money, the Serta Serene Sky™ Collection gives you great support, cushioning and coolness, all at an affordable price. Featuring Individually Wrapped Coils for maximum support. Layers of specialty foam, like Serta® PillowSoft® Foam and Cool Twist® Gel Foam, enhance softness while providing airflow to keep you cooler. The Serene Sky Firm is a good mattress for a back or stomach sleeper.