The Mattress Store

Serta® iComfort® Foam CF4000 Firm Twin XL Mattress

At a Glance

Your sweet dreams and rejuvenated body will thank you after experiencing the luxuriously cool sleep and cloud-like softness of the iComfort® CF400 Foam Firm mattress.

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The CF4000 Firm mattress features Carbon Fiber Memory Foam paired with the UltraCold System™ to help channel heat away from your body. Exclusive Air Support™ Foam contours to your body and helps relieve aches and pains caused by pressure points. This premium firm mattress is one of the coolest iComfort models ever!

Max Cold Cover™ made from super cool high-performance fibers provides an instant cool-to-the-touch sensation

UltraCold System™ uses an added layer of Carbon Fiber Memory Foam to absorb and disperse excess heat away from your body while you sleep

Carbon Fiber Memory Foam drives heat away from the body and provides extra-durable neck and back support

Air Support™ Foam responds to your body movement and relieves aches and pains caused by pressure points

iComfort® mattresses are compatible with Serta® standard or adjustable foundations; please contact store for details

Pioneering sleep science since 2011, iComfort® by Serta® is devoted to providing the most comfortable sleep ever, with mattresses tested to meet the demands of every lifestyle. Thanks to exclusive cooling technology and unbeatable foam and hybrid support, a growing number of satisfied sleepers have learned what it feels like to have the perfect night’s rest. Proudly made in the USA with CertiPUR-US® certified materials, iComfort® ensures your slumber is more than comfortable—it’s Serta comfortable®.