iComfort® Brilliant™ EFX is the top of the line, 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. It comes in 2 softness options: cushion firm or plush. 25-year limited warranty and 120-Day in-home Trial Period.
Avantec™ Fabric with TENCEL® Fibers (90% polyester/8% Tencel/2% Lycra)
EverCool® Memory Foam + Serta® PillowSoft™ Foam
EverFeel™ Technology Memory Foam
Cool Action™ Dual Effects®
Comfort Last® Foam
Ultimate Edge® Support - reinforced foam edge
StabL Base™ Foundation with double beam design
Serta’s Motion Custom™ Adjustable Foundation
25 Year Limited - first 15 years
of 3/4" or greater.
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.