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iComfort Directions Acumen Firm Reviews

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iComfort Directions Acumen Firm

The Acumen Firm, third model in the iComfort Directions Collection of memory foam mattresses made by Serta, differs from the Acumen Plush in two key respects. First, it does not have EverCool® GfX Memory Foam (according to Serta, though a few retailers list this among the features). Instead of Serta PillowSoft™ Foam, the Acumen Firm has Serta® Support Foam. This brings the firmness level of this mattress to Medium Firm (aka Cushion Firm). Like the Plush model, the Firm has the signature features of this collection: Thermo°Cool™ yarn fabric cover with TENCEL® fibers, Cool ActionDual Effects® Gel Memory Foam, Pods™ Gel-Activated Support, and Comfort Last® Foam Core with Ultimate Edge® Support foam encasement.
The cover of the iComfort Directions Acumen Firm features Thermo°Cool™ yarn cover fabric, which contains TENCEL® fibers for wicking moisture from the sleeping surface to evaporate. This both cools the surface and keeps it dry. The cover also a FireBlocker flame retardant fiber pad.

Next down is 2 inches of Cool ActionDual Effects® Gel Memory Foam. Updated from Cool Action™ Gel Memory Foam, this memory foam is infused with two kinds of gel. The original Cool Action™ has Serta's MicroSupport® gel, concentrated in the foam under areas of the body needing more support. Dual Effects® adds MicroCool+™ gel for temperature regulation. This gel has Phase Change Materials (PCMs), which change their physical state when needed to absorb or release heat.

Under the Cool ActionDual Effects® is a layer of Serta® Support Foam. According to Serta, this material "combines gentle cushioning with extra support, for more firmness at the sleep surface."

The Pods™ Gel-Activated Support is decidely different. Serta says this: "Strategically positioned macro-gel discs work with our Comfortlast® Foam Core support system to help provide extra push back support from the deepest part of the mattress and a firmer seating edge. Featured exclusively in our iComfort Directions mattresses."

The Comfort Last® Foam Core provides overall support for the iComfort Directions Acumen Firm mattress. This 6" high polyurethane foam block is highly resilient to undergird the comfort layers and prevent bottoming out. This also increases the life of the softer foams. The support core is extra firm.

Like other mattresses in the iComfort Directions Collection, the Acumen Firm can be used with Serta's own StabL-Base flat foundation (available in 9" Standard and 5½" Low Profile) and Motion Custom™ Adjustable Foundation.

The Acumen Firm carries Serta's 25-year limited warranty. This model is available through several retailers, in stores and online.

  • Mattress and Bed Set Model Name

    iComfort Directions Acumen Firm

  • 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


  • Inner Bed Composition

    6-inch PU support core, Pods Gel Activated Support, memoy foam with support gel and cooling gel (with PCMs), support foam

  • Mattress Edge Support

    Foam encasement

  • Mattress Cover Composition

    Tencel moisture-wicking fibers

  • Total Mattress Height

    12.5 inches

  • Bed Foundation

    StabL Base flat base or Serta Motion Custom adjustable bed

  • Special Features

    Cool Action Dual Effects gel memory foam, TENCEL moisture wicking fibers, macro-gel discs in Pods layer,

  • Sleep Trial

    120 days

  • Bed Warranty

    25-year limited warranty

  • Manufactured In


  • Restrictions

    Keep in sanitary condition, and provide proper foundation

  • Website


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