Orthopedic 12-inch California King-size 4-layer Memory Foam / Latex Mattress

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ITEM# 12947872
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ITEM#: 12947872

Sleep better on this California king-size mattress that incorporates NASA-developed memory foam. This orthopedic mattress features four distinct layers to evenly support and disperse your body weight on an open-cell memory foam sleep surface, allowing you to sleep cooler while reducing the pressure points that cause tossing and turning. This memory foam mattress is antimicrobial and resistant to dust mites, and it includes a washable cotton cover designed for maximum air flow.

  • Measures 12 inches thick
  • Density: 1.5-inch, 4-pound open cell sleep-surface memory foam, 1-inch layer of ventilated duralux latex, 3.5-inch high-density support layer, 6-inch convoluted high-density HR base foam
  • Dimensions: 12 inches high x 72 inches wide x 84 inches long
  • Machine washable organic cotton cover has a unique stretch and recovery with maximum breathing, absorption and moisture-wicking properties
  • Memory foam is resistant to dust mites and is naturally antimicrobial
  • Originally designed for NASA, this space age foam cradles your body, reducing pressure points that cause tossing and turning
  • Open cell sleep surface allows you to sleep cooler than other memory foam mattresses
  • Improves circulation
  • Eliminates motion transfer
  • Never needs turning
  • Disperses your weight evenly
  • Can be used with existing box spring or platform bed
  • Does not include foundation

Memory Foam Tips:
  • Remove from packaging within 72 hours to maximize memory foam expansion.
  • product arrives tightly packed. Unwrap and allow 48 hours for product to return to original shape.
  • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow to air for a few hours.
  • There may be slight variances in the dimensions.

Please be advised that even similar products may produce different firmness results.

Once opened this product is non-returnable.


Mattress Type Latex, Memory Foam
Thickness 12 Inch
Memory Foam Type Foam, Latex, Memory Foam
Support Medium
Mattress Top Specialty
Product Features Antimicrobial, Bed in a Box
Recommended Foundation Type Bed Slats, Box Spring, Platform
Size California King
Useful Link Mattresses and Memory Foam
Dimensions 84 x 72 x 12
Model Number OCLMF12CK
Country of Origin United States

Features for Rugs

See All Features

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Recent

  • Excellent purchase
    Verified Purchase

    We bought this for a platform California King base, I have not bought furniture before online, we've had it for 3 months now, we both had a great sleep from the beginning, very pleased.

    Read More
    Sheri F. Feb 12, 2016
  • very confy
    Verified Purchase

    This mattress is really comfortable. I just wish it would fit better in my platform bed. There are some little space unfilled

    Read More
    nayan97 Jul 17, 2015
  • The Absolute Best!
    Verified Purchase

    This mattress is wonderful. My husband had many issues with pain & hasn't been able to sleep in the bed for years. This mattress has fixed that. Now it seems I can't get him out of bed. Well worth the price. No smell. Convenient washable cover. I love it.

    Read More
    sheryl1111 Apr 21, 2015
  • Firm, comfortable mattress
    Verified Purchase

    I paid more than twice as much 9 years ago for a memory foam/latex mattress from a high end furniture store which pales in comparison to this mattress. It's firm but I still feel like it gently conforms to my body. Arrived in two days in a very compressed package but opened up to full thickness in less than two hours. Well worth the price.

    Read More
    Brett C. Jan 25, 2015
  • Most Helpful

  • Firm comfortable mattress
    Verified Purchase

    I waited a few weeks after receiving the mattress to review. Although the mattress was firmer than I had expected, I prefer a firm mattress, so this is fine with us. The odor that is common to these memory foam type mattresses took a couple of days to dissipate. We have absolutely no complaints about the mattress. My back pain that I was waking up with in the morning previous to purchasing this mattress has much improved. I would definitely purchase this mattress again and I do recommend it for others.

    Read More
    lotolatte Jan 6, 2011
    Verified Purchase


    Read More
    tidrick Oct 27, 2011
  • It's a nap magnet!
    Verified Purchase

    Something about that bed makes it nearly impossible to walk by without grabbing a quick cat nap! I fall asleep immediately. Not to mention a great night's rest. I purchased the latex bed because of chronic hip pain at night. My pain has diminished greatly. The organic cotton cover came with a tear in it and the customer service team at O has been great about getting me a new replacement. The price is amazing compared to the you-know-what beds. And every bit as comfortable and quality made. I figure I saved many hundreds of dollars. Thanks again O!

    Read More
    mylesella Oct 2, 2011
  • Matress is harder than expected
    Verified Purchase

    Matress is a little harder than expected but is still good for a good night's sleep

    Read More
    ericoakes Feb 14, 2012
  • Orthopedic 12-inch California King-size 4-layer Me

    excellent, no odor, self inflated in a matter of an hour or so. Well wrapped and we are very pleased. After sleeping on an air matress for 15 years, my bad back is finally getting some relief. Only problem is after purchase, they raised the price on it $$$+ dollars.

    Read More
    igimom Nov 26, 2011

Questions & Answers

  • Q:

    "Can you tell me if the foam is made in the U.S. as well? I know you mentioned manufactured in U.S., but sometimes the mattresses are assembled in U.S. But with foam from elsewhere."

    • A:

      Hello cjfromsandiego, this item was made in the United States, including the foam. Thanks for shopping with us!

  • Q:

    "Hello, Where was mattress manufactured? What is the "firmness" rating?"

    • A:

      Hello Wiley123, the mattress was manufactured in the USA. The mattress will have a medium firmness. I hope this helps. Thank you for shopping with us! T.B.

  • Q:

    "It says the cover is washable, does that mean it can be removed? By zipper?"

    • A:

      Hello fried52, thank you for your inquiry! Yes, this item does have a zipper for easy removal. I hope this helps. Happy shopping!

  • Q:

    "I couldn't find same mattress for King size? Is it out of stock?"

    • A:

      Hello heyam2013, we appreciate your inquiry. The King size mattress is available under item #12947871. We hope this information has been helpful. Thank you for shopping with us. Have a great day!

  • Q:

    "Whats the LDI rating on the mattress?"

    • A:

      Hello kostaki, The ldiperri Rating: 4.0 on the Orthopedic 12-inch California King-size 4-layer Memory Foam / Latex Mattress. Please feel free to contact us again with any further questions. Thank you for shopping with us!

  • Q:

    "How much does this mattress weigh?"

    • A:

      Thanks for your interest, this mattress weighs 95 lbs.

Shopping Tips & Inspiration

Shipping & Returns

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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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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. 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.