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iComfort Brilliant EFX Reviews

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iComfort Brilliant EFX

Brilliant is the top model in the new iComfort EFX memory foam mattress collection by Serta. It is an appoximately 13" high mattress with a comfort level of Extra Plush. Serta calls it, "The ultimate combination of ultra-plush comfort and targeted support."

As the top iComfort EFX model, Brilliant EFX has three layers of Serta iComfort's most advanced memory foams: EverCool® memory foam, Cool Action™ gel memory foam, and Cool ActionDual Effects® gel memory foam. The Dual Effects® foam is a standard feature of iComfort mattresses, and Brilliant has 33% more than models in the other iComfort collections.

__________Features of the iComfort Brilliant EFX:
__1. Avantec™ Premium Performance Fabric with TENCEL® Fibers
__2. EverCool® Memory Foam + Serta® PillowSoft™ Foam
__3. EverFeel™ Technology
__4. Cool Action™ Dual Effects® Gel Memory Foam
__5. Cool Action™ Gel Memory Foam
__6. Comfort Last® Foam Core with Ultimate Edge® Support

Avantec, the cover fabric, is a blend of polyester, Tencel and lycra. Tencel fibers are extracted from wood pulp. They wick moisture away from the surface, then are cooled by evaporation. This fabric is also highly breathable.

EverCool memory foam is also very breathable. In Brilliant EFX it is paired with Serta PillowSoft foam, making this mattress Extra Plush.

EverFeel Technology (EFX) is a thin layer of enhanced conformability.

The Cool ActionDual Effects® gel memory foam is infused with two proprietary gels. MicroSupport® enhances the support of the memory foam. MicroCool+™ cools the foam. The memory foam itself is open-cell structured, so that air flows through it for breathability and cooling. The open-cell structure also makes the foam more supportive.

Cool Action™ gel memory foam deepens the conformability of the iComfort Brilliant EFX mattress, while the gel keeps it cool.

Primary support for the Brilliant EFX rests on the iComfort Comfort Last® foam support core. This high resilience material undergirds the plusher overlying layers to provide deep-down support. By keeping the memory foam from bottoming out, it extends the life of the comfort layers. The Ultimate Edge® foam encasement provides edge support for the sleeping surface as well as for the mattress as a whole.

iComfort Brilliant EFX bears Serta's 25-year limited warranty. It is available through major national department store chains as well as local and regional retailers, both in stores and online.

  • Mattress and Bed Set Model Name

    iComfort Brilliant EFX

  • Price Category


  • Listed Manufacturer


  • Location

    Serta International, Customer Service Department, 3 Golf Center #392, Hoffman Estates, IL 60169, 1-888-55-SERTA (1-888-557-3782)

  • Bed Classification

    Memory foam

  • Level of Firmness

    Ultra Plush

  • Inner Bed Composition

    HR foam support core with several foam comfort layers

  • Mattress Edge Support

    Foam encasement

  • Mattress Cover Composition

    Blend of polyester, Tencel and lycra

  • Total Mattress Height

    13 inches

  • Bed Foundation

    StabL Base platform or Serta Motion adjustable bed

  • Special Features

    Dual gel memory foam

  • Sleep Trial

    not stated

  • Bed Warranty

    25-year limited warranty

  • Manufactured In


  • Restrictions

    Keep in sanitary condition, and provide proper foundation

  • Website


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