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Serta Deluxe 12-inch King-size Memory Foam Mattress

Overall Rating Rating 4.5  |  18 reviews  |  Write a review
Today $599.99
$530.00 (47%) off
MSRP: $1,129.99
Item #: 15847535
    The Serta Deluxe 12-inch King-size Memory Foam Mattress offers a truly luxurious, deeply restful sleep experience. Three foam layers are each designed to provide a unique sleeping benefit....more

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    The Serta Deluxe 12-inch Memory Foam Mattress offers a truly luxurious, deeply restful sleep experience. Three foam layers are each designed to provide a unique sleeping benefit. The top layer is premium memory foam for a balanced combination of cradling comfort and gentle support. The middle layer is made of premium air channel foam for enhanced air circulation and customized support. The base layer is made of premium support foam which adds stability and therapeutic support.

    • Premium, 3-layer design
    • 2.5-inch top layer premium memory foam for cradling comfort
    • 2.5-inch middle layer air channel foam for breathability, customized support
    • 7-inch base layer support foam for stability, long lasting durability
    • Beautiful, quilted cover for extra layer of softness
    • Maintains shape without flipping or rotating
    • Evenly distributes body weight
    • Minimizes impact of sleep partner's movements
    • Measures 12 inches thick
    • Density: 3 pounds
    • Cover care instructions: Spot clean
    • Resistant to dust mites, naturally antimicrobial
    • Originally designed for NASA, the space age foam cradles the body, reducing pressure points
    • Adjusts to body temperature
    • Improves circulation
    • Never needs turning
    • Can be used with existing frame
    • Great for platform beds and slatted frames
    • King dimensions: 12 inches high x 76 inches wide x 80 inches long


    Memory Foam Tips:
    • Remove from packaging within 72 hours to maximize foam expansion.
    • This product arrives very tightly packed. Unwrap and allow 48 hours to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. Allow product to air for a few hours.






    Once opened this product is non-returnable.
Dimensions:
12 in H x 76 in W x 80 in L
Warranty:
20 year Limited Manufacturer
Materials:
Memory Foam
Model No:
MT43870KG3L
Brand: Serta

Features

  • Mattress Type
    Memory Foam
  • Thickness
    12 Inch
  • Memory Foam Type
    Foam, Memory Foam
  • Density
    3 Pound
  • Support
    Medium
  • Mattress Top
    Specialty
  • Product Features
    Antimicrobial, Made in USA
  • Recommended Foundation Type
    Bed Slats, Box Spring, Platform
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Showing most helpful review on this product.

  • 5 Stars 12
  • 4 Stars 5
  • 3 Stars 0
  • 2 Stars 0
  • 1 Stars 1
  • Great mattress...a little too firm

    This mattress is great. It arrived in 5 days after ordering it. It is the perfect height for our platform bed without a box spring. It has a lot of support but is a bit too firm. It's hard to buy a mattress online without testing it first! I thought the memory foam might soften up a little after a while but it didn't so we went ahead and bought a cheap memory foam mattress topper and put that on which made the mattress perfect. There is a lot of support from the mattress and the pad on top adds the perfect amount of cushion. Considering you can buy the same mattress on Amazon for **** more, I think this was a great deal and would absolutely recommend it.

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  • Amazing Value--Comfortable Name Brand Mattress

    We had purchased a version of this mattress for our son several years ago and have been vary satisfied with it. When deciding to move up to a king size bed, we were in for a big case of sticker shock when looking at traditional stores for mattresses. We decided to give overstock a shot, even though it was for a king size mattress. As with our son's mattress, it arrived in a rectangular box that in no way resembles a mattress. It looks ways to small and all wrong, but it is an eastern king 12 inch thick mattress in that box!! Be sure to unbox your mattress in the same location as you plan to use it. It will smell a bit funky for the first week or so. What helped us is to remove the bedding, including mattress pad, daily for the first week to help the smell dissipate. Open the windows if you can. It will stop smelling and relax into it's regular shape within the first week or so. Very comfy, great value. Literally thousands less than at a traditional store for a name brand (Serta) mattress...and without the huge delivery and set up charge a store will charge. Definitely recommend!

    Flag

    martilindsey from Northern Los Angeles County, CA, Nov 30, 2014

  • Amazing mattress for the price.

    Better than expected. I was leery of wasting money on a cheap "foam" mattress, but since delivery, I have been extremely happy with the overall quality & comfort of this mattress.

    Flag

    MarkWBryan from Seattle, WA, Oct 23, 2014

  • Great value

    We like this a lot and the price was right. It's very comfortable.

    Flag

    kahng from Columbia, MO, Sep 4, 2014

  • DONT do it.

    Don't do it. It is comfortable for a year and then you sleep in a dip and struggle to get out of bed in the AM. The foam just stops bouncing back. Two of us sleep on the bed and we way 175 and 130 pounds each. i am so disappointed that today I have to go buy another king sized mattress WITH SPRINGS this time. I will never buy another FOAM mattress again.

    Flag

    msdillard3 from Charleston SC, Aug 17, 2014

  • Soft yet firm

    This memory foam mattress molds to your body shape making it soft, yet it is still a firm mattress. I had a great night sleep on it and did not want to get out of bed. A great product that was shipped in a small box. I was confused as it was not mattress shaped. It was vacuum packed. I wish I had videoed it unfolding when I cut the bag.

    Flag

    radiobr from Baltimore, MD, Aug 14, 2014

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Product Q&A

Ask a Question

I am really considering getting this mattress at this deal, but I'm scared of getting it and it having a great pet peeve of mine. HEAT! Some of the reviews say its a problem others doesn't. Is there any fair info you can give me and in the event of getting it and heat is an issue what are cost effective solutions to problem. I seen one review say they woke up sweaty. Really don't want that. Mike on Nov 14, 2014
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Answer This Question

Hello Mike, memory foam does tend to retain body heat, if this is worrisome for you, then i would suggest going with a memory foam mattress that has gel, which will help to keep you cool. If you search for "king gel memory foam mattress" in our search bar, you will find a wonderful selection. Thanks for shopping with us! A.S. overstockcustomercare2 on Nov 18, 2014
 
 

isn't king size usually 80 X 80? Your dimensions state 76 X 80 MrsEngley on Oct 27, 2014
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Answer This Question

Hello MrsEngley, that is correct on the dimensions, the standard for a king size mattress is 76 inches wide by approximately 80 inches long. Thank you for shopping with us! overstockcustomercare1 on Oct 29, 2014
 
 

how does this mattress compare to the Serta Pierta gel memory foam queen size mattress in terms of firmness beeno01 on Jun 12, 2014
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Answer This Question

Thank you for the question beeno01. I am sorry but we do not have the information to compare the two mattresses together. This particular mattress has received very favorable reviews. I looked on other sites and can say that the Pierta also got favorable reviews especially when talking about heat dissipation. I am sorry I couldn't answer the question. Have a great day and thanks for visiting our site. overstockcustomercare1 on Jun 19, 2014
 
 

does this mattress come with box-spring bases? prodgers35 on May 19, 2014
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Answer This Question

Thank you for shopping with us prodgers35. This does not come with a foundation. Here is our selection of mattress systems. http://www.overstock.com/search?keywords=king+mattress+with+foundation&SearchType=Header Have a great day. overstockcustomercare1 on Jun 2, 2014
 
 

Any warranty?? njmsmom on Feb 14, 2014
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Answer This Question

Hello njmsmom, this has a 20 year Limited Manufacturer warranty. Have a great day! overstockcustomercare1 on Feb 20, 2014
 
 

Hello how much does this mattress weigh jjbittinger on Jan 13, 2014
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Hello jjbittinger, this is 104 pounds. Have a great day! overstockcustomercare1 on Jan 14, 2014
 
I do not know the exact weight but I can tell you that the average size person isn't going to be moving it alone. I can't move it even an inch. But that is one of the reasons I wanted it. Our previous mattress was like sleeping on a trampoline. luvdasea on Jan 24, 2014
 
It took 2 of us to carry it upstairs. blinkon2 on Feb 28, 2014
 
 

Have you had any complaints about the odor of this mattress? golfingjays on Dec 18, 2013
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Answer This Question

Hello golfingjays, we currently do not have any reviews on this item so there is no way for me to see any complaints. I just got my first memory foam mattress last month it also is a serta and it had no smell at all. These beds are so comfortable! Have a great day! overstockcustomercare1 on Dec 19, 2013
 
We did not notice too much of an odor at all. Guess we were lucky. blinkon2 on Feb 28, 2014
 
 

how come this has no reviews? I'm trying to see if this one is similar or as good as the 8-inch Serta Memory Foam Mattress. eliast on Nov 27, 2013
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Answer This Question

Hello eliast, This is a new item so there are no reviews yet. From my experience with memory foam I think this one would be better than the 8 inch because it has Three foam layers where the other one only has 2. Happy shopping! overstockcustomercare1 on Nov 29, 2013
 
We got the 12. Very firm, we do like it and would buy it again, but it could be a little softer. blinkon2 on Feb 28, 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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