Serta iSeries Expression Firm Hybrid Gel Memory Foam & Dual Pocketed Coil Mattress



Experience the benefits of our gel memory foam technology with a firm mattress. It features our Cool Action Dual Effects® Gel Memory Foam to help relieve pressure while providing targeted support and enhanced cooling comfort. Two layers of Serta® Support Foam rest under the Cool Action material, allowing you to experience the benefits of this advanced material in a firm mattress.



Your iSeriest® Sleep System mattress comes with a 10-year limited warranty.

Comfort Assurance

We want you to make your iSeries by Serta purchase with complete confidence. We know that even after making a careful selection, sometimes people may need a different level of comfort. That is why your iSeries mattress purchase is backed by our 120 Day In-Home Trial Policy.


Approx. Mattress Height

  • 13.75"

Support System

  • Duet Coil Individually Wrapped Coil-in-Coil Support System (1008) with BestEdge® Foam Encasement

Top Upholstery

  • Cool Action Dual Effects® Gel Memory Foam
  • Serta® Support Foam


  • FireBlocker® Fiber
  • Pillo-Fill®
  • 1½" Serta® PillowSoft Foam