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

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ITEM# 15417394
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ITEM#: 15417394

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: King
  • 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: 76 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.


Finish Charcoal  , Green  , Natural  
Mattress Type Foam, Gel Memory Foam, Memory Foam
Thickness 11 Inch, 5 Inch, 6 Inch, 7 Inch
Mattress Top Plush Top, Tight Top
Mattress Support Medium
Product Features Antimicrobial, Bed in a Box
Recommended Foundation Type Bed Slats, Box Spring, Platform
Size King
Dimensions See Details
Warranty 20 year Limited Manufacturer
Model Number OST5511-K
Country of Origin China

Quality Rating

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Features for Rugs

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Questions & Answers

  • Q:

    "Why aren't the reviews showing on this bed. I have posted a review and it is not posted here."

    • A:

      Hello kimsjohnston, locate and click "write a review" under the product description and complete the form. Please be sure that the review is posted under "write a review" and not the Q&A. Please let us know if you have additional questions. Thanks for shopping with us.

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Shipping & Returns

Contact Information
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.
Standard shipping details
Expedited shipping details

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.
More Details


This item cannot be shipped to Alaska or Hawaii. More details

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.