iComfort ECO Q10 Extra Firm by Serta

CoolTemp™ Cover Powered by REPREVE® This cool-to-the-touch, breathable cover is made with recycled plastic bottles. TerraFusion™ Foam Made from 28% plant-based material, this foam contours and cradles your body.  Balanced Support Foam It strikes the ideal balance of cushioning and support, no matter how firm or plush you prefer your mattress. Serta Foam Core Provides durable support for any sleep position, with consistent support from edge to edge. 1000 Series 5-Zone quad coil support system- Made with 85% recycled steel, it provides targeted pressure relief and support for your back and thighs- and cradles you everywhere else.  Featuring select materials up to 70% sustainable, this supportive mattress offers a hybrid construction with a classic, quilted-top feel- with upgrades available for even more cooling, comfort, and pressure relief.