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Matflex

King Size Mattress 12 inch, Gel Memory Foam and Individual Pocket Springs, Fiberglass Free, Soft and Breathable, Medium Firm Feel

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Availability: In Stock.
Fulfilled by Matflex-US
Arrives Friday, May 22
Order within 11 hours and 42 minutes
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Size: King


Style: 12 Inch


Features

  • 8 layers of Luxury Comfort- Experience unparalleled support and pressure relief with Matflex's carefully crafted 8-layer design. Featuring a breathable cashmere blend cover, contouring comfort foam, and individually wrapped coils, this hybrid mattress offers the perfect balance of plush cushioning and robust support.
  • Ultra Quiet and Peaceful Sleep: Supported by hundreds of Individual pocket spring and slow springback foam, it can effectively absorb the noise and vibration caused by tossing and turning when sleep. Not disturb companion and just enjoy undisturbed sleep
  • Meidum Firm: Matflex mattress combines multiple support and comfort layers to bring you responsive comfort and a medium-firm feel great for back, and stomach sleepers
  • Fiberglass-Free: Matflex mattress are certified and tested by CertiPUR US to ensure that the products meet the highest quality and safety standards, allowing you to enjoy a comfortable sleep on a fresh and odorless mattress.
  • Mattress in a box: Matflex mattress is compressed into a new smaller box that reduces its carbon footprint. Please allow 48h for full expansion after unroll and the mattress

Brand: Matflex


Size: King


Product Dimensions: 80"L x 76"W x 12"Th


Item Weight: 90 Pounds


Item Firmness Description: Medium


Top Style: Euro Top


Number of Layers: 8.0


Fill Material: Gel Memory Foam


Weight Limit: 600 Pounds


Special Feature: Breathable, Low Motion Transfer, Pressure Relief


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 90 pounds


Manufacturer: Matflex


Item model number: MF12K


Date First Available: August 20, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 22

Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Perfect king mattress for our guest room!
Size: King Style: 12 Inch
Review Image by Valerie Valerie
Bought this for the guest bedroom and it’s a winner. Guests rave about how comfortable and supportive it is—no complaints about back pain or feeling too firm/soft. It unboxed easily, expanded fully in a couple of hours, and looks brand new. Great value, stays cool, and holds up perfectly for occasional use. Highly recommend for guest rooms! ... show more
Reviewed in the United States on December 25, 2025 by Valerie Valerie
    • Good quality
Size: Twin Style: 10 Inch
Very comfortable, well worth the money and would recommend. i’ve had the bed for a few weeks now and it’s super comfortable.
Reviewed in the United States on January 16, 2026 by Dee Bosgraaf
    • This is a good quality mattress that will last
Size: King Style: 12 Inch
I love it, medium firm is exactly what it is, so if you’re used to sleeping on a softer top I’d suggest getting a mattress topper but as far as quality, sturdiness, look and feel, its an amazing mattress for the price. Also be careful opening it because its packaged really tight and the mattress can/will literally pop open and throw you across the room, yes I am speaking from experience. ... show more
Reviewed in the United States on January 30, 2026 by Amazon Customer
    • Nice mattress
Size: Twin Style: 10 Inch
Soft and comfortable. Worth the price
Reviewed in the United States on December 10, 2025 by Enza
    • My mattress topper
It is very comfortable I am so glad I ordered this it has protected my back and I have so much comfort my back feels a lot better
Reviewed in the United States on January 23, 2026 by Debra Catledge
    • Mattress review
Size: Twin Style: 10 Inch
Decent mattress. Sent fast. Arrived in a few days. Unboxing was easy.
Reviewed in the United States on January 18, 2026 by Amazon Customer
    • Order it
Size: King Style: 12 Inch
We’ve had this mattress for less than a month but it has been an incredible bang for its buck. It couldn’t have been easier to set up and it’s been even more comfortable than we hoped. The fact that it’s black is genius and the pillow top is cushy.
Reviewed in the United States on December 11, 2025 by sarah burzette
    • Best bed that I have bought in a long time
Size: Full Style: 10 Inch
My son is so happy with this bed. It was just as described and so much softer then expected but still firm.
Reviewed in the United States on January 2, 2026 by Ashley M Roebuck

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