EFX Intellectual


iComfort® Intellectual™ EFX is a firm, gel infused memory foam mattress offered in a new EFX Collection that features Cool Action™ Dual Effects® Gel Memory Foam with two different types of gel - MicroSupport® and MicroCool+™ and EverFeel™ Technology memory foam. 25-year limited warranty and 120-Day in-home Trial Period.

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Product Height: 
Quilt/Top Layers: 

Avantec™ Fabric with TENCEL® Fibers (90% polyester/8% Tencel/2% Lycra)

Comfort Layers: 

EverFeel™ Technology Memory Foam
Cool Action™ Dual Effects® Gel Infused Memory Foam Gel Infused Memory Foam
Serta Support Foam

Support System: 

Comfort Last® Foam Support Core Support Core

Edge Support: 

Ultimate Edge® Support - reinforced foam edge


StabL Base™ Foundation with double beam design
Serta’s Motion Custom™ Adjustable Foundation

Foundation Height: Regular 9", Low Profile 5"
Adjustable Base Compatible

25 Year Limited - first 15 years Non-Prorated Non-Prorated + 10 years Prorated Warranty Prorated
No Flip, No Rotate No Flip, No Rotate
Body indentation Body indentation of 3/4" or greater.

Shopping Tips: 

Serta typically does not provide information about the quality of materials used in their foam mattresses. We do not recommend buying a foam mattress unless you know the height, density or ILD of each layer this mattress was built with. Height and density of a foam layer determines the quality and durability of this layer. Overall quality and durability of the mattress is only as good as the quality and durability of its components.