California King-size 8-inch Memory Foam Mattress

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ITEM# 12989870
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ITEM#: 12989870

Sleep in ultimate comfort with a memory foam mattress. This mattress features a 3-inch premium layer of 3-pound memory foam to disperse your weight evenly.

  • Mattress measures 8 inches thick
  • Materials: 5-inch polyurethane foam base with a memory foam top
  • Density: 3 pounds of memory foam and 2 pounds of polyurethane foam
  • Dimensions: 8 inches high x 72 inches wide x 84 inches long
  • Memory foam is hypoallergenic, resistant to dust mites and naturally antimicrobial
  • Originally designed for NASA, this space age foam cradles your body, reducing pressure points that cause tossing and turning
  • Features 3 inches of viscose memory foam on top of 5 inches of polyurethane foam
  • Disperses your weight evenly
  • Mattress can be used with an existing frame
  • Great for platform beds and slatted frames
  • Meets all flammability standards
  • Removable luxurious quilted cover
  • Cover materials: 60-percent polyester knit jacquard/40-percent bamboo with 100-percent polyester microfiber suede sidewalls
  • Cover bottom has latex dots to prevent slipping
  • Cover care instructions: Machine washable

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.

Once opened this product is non-returnable.


Mattress Type Memory Foam
Thickness 8 Inch
Product Features Antimicrobial, Bed in a Box
Useful Link Mattresses and Memory Foam
Dimensions 72.0x84.0x8.0
Model Number 36498MT5WHT
Country of Origin China

Quality Rating

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Features for Rugs

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Product Reviews

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  • Most Recent

    Verified Purchase

    What a great price! I was looking for a new mattress and was about to spend over $2300 for a mattress that wasn't even a memory foam mattress. I followed the instructions and waited the full 48 hours to let it expand. It did not have a smell that everybody else was experiencing after unpackaging and it expanded almost immediately after I opened the vacuum seal package. I placed it on the box springs I already had since I haven't received the platform bedframe yet, but last night was the most comfortable sleep I have had in a long time. Very comfortable and a lot of extra room. I would recommend this to everybody and especially buying from overstock! Shipping was free and quick. I received my mattress about 3 days after I placed the order. This fit my budget perfectly!!

    Read More
    dvspinay Dec 15, 2012
  • Very comfortable
    Verified Purchase

    I purchased this for our son. He lives in a different state so I was a bit skeptical buying a bed for someone without their knowledge. He had advised us he really needed a new mattress but due to the economy he was unable to at this time. He had also mentioned he was not sleeping well due to the springs coming through his old mattress. I got on Overstock and saw this mattress and knew it had to be better than what he had and with this he did not have to worry about being poked with springs. After he received it, he let us know it arrived in great shape and that he LOVED it. He sleeps much better now! So glad to be able to shop on Overstock.

    Read More
    sheilakb Jul 28, 2012
  • Can't feel movement of the other person!
    Verified Purchase

    The mattress is great for us. My boyfriend finally has a bed he fits on without his feet hanging off the end and the memory foam allows him to move around in his sleep without waking me up! It is definitely not a bouncy mattress, but it is extremely comfortable. We are going to get a second one for our master bedroom we are finishing! The price is definitely right.

    Read More
    amaful Jun 12, 2012
  • Verified Purchase

    Read More
    Carine B. Nov 10, 2016

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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

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.