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Christopher Knight Cool Tencel 11-inch Twin XL-size Gel Memory Foam Mattress

Overall Rating Rating 2  |  1 reviews  |  Write a review
Today $359.99
$209.01 (37%) off
MSRP: $569.00
Item #: 15417398
    This mattress incorporates a layering system designed to dynamically relieve pressure points that disrupt sleep. A revolutionary open cell gel-infused memory foam helps to keep you cool at night....more

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    Green Tea helps to reduce odors, charcoal helps to draw heat in and whisk moisture away. Bio Foam is the process in which natural seed oils are used instead of harmful chemicals
    • First Layer: 0.5 inch of cool gel-infused memory foam
    • Second Layer: 1.5 inches breathable pressure relief memory foam
    • 3rd Layer: 2 inches advanced spinal support poly foam layer
    • Base Layer: 7 inches high-density reflex base foam
    • Bottom Cover: Non-slip fabric
    • Cover: Poly Jacquard with Aloe Vera

    • Size: Twin XL
    • Green Tea helps to reduce odors
    • Zippered cover for easy professional cleaning
    • Density: 3 pounds in top layer
    • Warranty: 20 year Manufacturer's warranty
    • Dimensions: 39 inches wide x 80 inches long x 11 inches tall
    • Memory foam is resistant to dust mites and is naturally antimicrobial
    • Temperature sensitive foam adjusts to your body temperature so you stay warm
    • Improves circulation while reducing pressure points
    • Eliminates motion transfer and uncomfortable pressure points
    • Never needs turning
    • Disperses your weight evenly
    • Great for platform beds and slatted frames
    • Meets all flammability standards

    Memory Foam Tips:
    • Remove from packaging within 72 hours of receipt to maximize memory foam expansion.
    • This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
    • Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.

    Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.
See Description
20 year Limited Manufacturer
See Description
Model No:


  • Color
  • Finish
    Charcoal  , Green  , Natural  
  • Mattress Type
    Foam, Gel Memory Foam, Memory Foam
  • Thickness
    11 Inch, 5 Inch, 7 Inch, 9 Inch
  • Density
    3 Pound
  • Support
  • Mattress Top
    Plush Top
  • Product Features
  • Recommended Foundation Type
    Bed Slats, Box Spring, Platform
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Showing most recent review on this product.

  • 5 Stars 0
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  • 2 Stars 1
  • 1 Stars 0
  • 3 inches too short

    Too short otherwise comfortable. We needed a bedding that was XL because my son is so tall.

    • How did the color on site compare with the actual product? fine
    • Please tell us about the quality of the product. too short
    • How accurate was the on site description of the product? No
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Product Q&A

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It says 80"-is it shorter than that? ruth000 on Mar 27, 2014
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Hello ruth000, this memory foam is 39 inches wide 80 inches long. Have a great day! overstockcustomercare1 on Apr 7, 2014

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Mattress Return Policy:

Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
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This item cannot be shipped to Alaska or Hawaii.
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Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.

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