Serta offers hybrid and innerspring mattresses that are currently available in two different mattress series. Layers of Carbon Fiber Memory Foam and EverCool® Fuze Gel Memory Foam help channel heat away from your body, while the 1025 iComfort® Hybrid … Layers of Carbon Fiber Memory Foam and EverCool® Fuze Gel Memory Foam help channel heat away from your body, while the 1025 iComfort® Hybrid Support™ System with BestEdge® Foam Encasement conforms and supports your every curve. The Serta iSeries Hybrid mattress line incorporates proprietary foam technology as well as individually wrapped coils.All of the iSeries Hybrid mattresses are designed to offer a balance of comfort and support.. Updated January 17, 2020. Key Features Carbon Fiber Memory Foam - Every iComfort mattress … The Perfect Sleeper mattress … Please note: some Serta mattresses are labeled as innersprings, even though they feature memory foam/polyfoam comfort layers and pocketed coil support cores; according to our criteria, these models would qualify as hybrid mattresses.. Serta iSeries Hybrid 1000 Firm Mattress. On top, an exclusive Max Cold™ Cover is made from super-cool, high-performance fibers for an instant cool-to-the-touch sensation. They are also designed to keep people from sleeping hot. Serta iComfort Hybrid Blue Fusion 1000 Luxury Firm Mattress Review. The iComfort CF1000 Hybrid Medium mattress is comfortably cool and supportive. The Serta iSeries mattress offers superb durability and excellent motion isolation. While it is called the 1000 Firm, this mattress is actually average in terms of firmness.Medium-firm mattresses are often best for back sleepers and some side sleepers. The iComfort CF1000 Hybrid Medium mattress is comfortably cool and supportive. Serta’s new iSeries Hybrid line offers the pressure relief of their patented foam technology and the support and contouring of their coil systems. The Hybrid 1000 Firm is an average-firm mattress designed for maximum comfort, support, and pressure relief.Its medium-firm feel is best for side sleepers, who want their hip and shoulder to sink into the mattress a little to keep the spine aligned.The 1000 Firm’s design targets pressure points for maximum relief. The iSeries Hybrid 1000 Medium features 2.5 inches of memory foam, a 12-inch total profile and medium firmness, making this mattress great for virtually all sleepers. Each Serta iSeries hybrid mattress offers an individual, responsive feel to each sleeper that makes them enjoy the best of both mattress worlds – the soft, cradling feel of luxury memory foam and the firm mattress … Click here for current reviews … Learn more about the pros and cons of this mattress in this detailed review. Every iSeries Hybrid mattress … Shop Serta iComfort by CF 1000 12 Hybrid Medium Firm Mattress - Queen online at Macys.com. This model has been discontinued, but we are leaving the review available for your convenience.