Serta Q10 Extra Firm Mattress (King)

Featuring select materials that are 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. This Q10 Extra Firm mattress by Serta iComfort Eco features the CoolTemp™ Cover powered by Repreve® for a cool-to-the-touch and breathable feel, a layer of TerraFusion™ Memory Foam made from 30% plant-based material that provides pressure relief and reduced motion transfer, and the 5-zoned Quad Coil Support System to provide targeted pressure relief and support for your back and thighs- and cradres you everywhere else.