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Sleep Science Carina 11-Inch Reviews

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Sleep Science Carina 11" Gel Memory Foam Mattress

Except for the relative thicknesses of the top and third comfort layers, the Sleep Science Carina 11" Gel Memory Foam Mattress is the same as the Blissful Nights Violet. Both are made by South Bay International, but the Sleep Science mattress is sold exclusively at Costco. It is billed as a "Gel Infused Visco and Latex Specialty Mattress," which can be classified as a hybrid of memory foam mattress and latex mattress.

The construction of the Carina consists of three comfort layers and a high density support core. The 2" top layer is gel-infused memory foam, followed by 2" of memory foam, then 1" of ventilated Talalay latex. The support core is scored on the top for air flow.

SS Carina 11 Corner

The cover of the Sleep Science Carina has a white high-loft knit top panel and beige sides. The top is zippered for removal and washing.

The top layer of the Carina is 2" of 3-lb. memory foam infused with gel (in the Violet this is only 1" high). The gel is for keeping the memory foam cool by absorbing heat.

The second layer is 2" of 4-lb. memory foam. Just a bit firmer, it is still conforming for the purpose of support for the spine and pressure relief for large joints.

These two layers are encircled by the 4" x 4" Wedge Edge foam encasement. This supplies perimeter support to the memory foam and edge support to the top surface.

The Talalay latex layer is 1" high (it is 2" in the Violet). Latex is more resilient than memory foam, providing more support to the sleepers. It also helps in cooling the memory foam since air flows through it.

The support core is labeled the Air Channel Base. A grid of airflow channels about 2" deep is cut into the top of this 6" layer of extra firm polyurethane foam. This allows air inside the mattress to be exchanged with outside air through the permeable border (side panels) of the cover.

SS Carina 11 on Adj

Costco shows the Carina 11" mattress on an adjustable bed, the Sleep Science Adjustable Base (Motion Trend). Other suitable foundations include platform beds and solid surface box bases (not box springs).

The Sleep Science Carina 11" Gel Memory Foam Mattress is covered by South Bay International's 20-year limited warranty.

  • Mattress and Bed Set Model Name

    Sleep Science Carina 11-Inch

  • Price Category


  • Listed Manufacturer

    Sleep Science

  • Location

    South Bay International, Inc., 2665 Pomona Blvd Pomona, CA 91768, (909) 718-5000

  • Bed Classification

    Memory foam, gel, latex

  • Level of Firmness


  • Inner Bed Composition

    Layers of gel-infused memory foam, memory foam and latex ofer relief-cut PU support foam

  • Mattress Edge Support

    Wedge Edge foam encasement

  • Mattress Cover Composition

    Loft knit

  • Total Mattress Height

    11 inches

  • Bed Foundation

    Adjustable bed or platform

  • Special Features

    Two kinds of memory foam (1 gel-infused) plus latex

  • Sleep Trial

    Indefinite at Costco

  • Bed Warranty

    20 year limited warranty

  • Manufactured In


  • Restrictions

    Keep in sanitary condition, and provide proper foundation

  • Website

    http://www.southbayinternational.com/ http://www.costco.com/

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