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Christopher Knight Comfort 11-inch King-size Memory Foam Mattress

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ITEM# 14278435
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ITEM#: 14278435

Rest comfortably on this spinal response 11-inch comfort memory foam mattress with green tea extracts and latex-visco air flow support layer.

  • Mattress measures 11 inches high
  • Materials: Memory foam, refreshing poly velour cover, green tea memory foam, latex-visco air flow support foam, high density reflexive base foam
  • First Layer: 1-inch green tea memory foam tailored into top panel (3-pound convoluted density)
  • Second Layer: 2-inch green tea support memory foam (3-pound density)
  • Third layer: 3-inch latex-visco air flow support layer with high density edge support (4-pound density)
  • Fourth layer: 5-inch high density reflexive base foam layer (2.2-pound density)
  • Mattress measures 76 inches wide x 80 inches long x 11 inches high
  • Resistant to dust mites and is naturally antimicrobial
  • Originally designed for NASA, this space age foam cradles body, reducing pressure points that cause tossing and turning
  • Temperature sensitive foam
  • Disperses weight evenly and eliminates motion transfer
  • Never needs turning
  • Can be used with an existing frame, adjustable bases, platform beds and slatted frames
  • Meets all flammability standards
  • Bottom is non-woven stitch with reinforced zipper
  • Frame and foundation sold separately
  • Dimensions: 76 inches wide x 80 inches long x 11 inches high
  • Materials: Memory Foam

Once opened this product is non-returnable.


Mattress Type Memory Foam
Thickness 11 Inch
Mattress Top Tight Top
Mattress Support Medium
Product Features Antimicrobial, Bed in a Box
Recommended Foundation Type Platform
Size King
Dimensions See Details
Model Number SR0012KMF
Country of Origin China

Quality Rating

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Features for Rugs

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Questions & Answers

  • Q:

    "Can you please check with the manufacturer to see if all their products contains charcoal (to help with off-gassing) as I know one Spinal Response mattress we have does? When I purchased mine they only had a couple different mattresses available and now they have over 40 so the item descriptions have changed and many of them do not mention charcoal."

    • A:

      Hello weasle34! This mattress does contain charcoal in the foam which does minimize the "off gassing" commonly found in many memory foam products. I hope this helps. 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.