Are you ready for a great night’s sleep? The Serta iComfort Blue 100 Cushion Firm mattress features Serta’s proprietary TempActiv® cooling technology infused into both the gel memory foam inside the mattress and integrated into its fabric cover. This combination gives you an instant, cool-to-the-touch sensation and body-contouring support, with a firm but not too firm feeling. The perfect mattress to better you sleep at great value, you can help eliminate tossing and turning as you drift off to dreamland.