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OFFTR z

King Mattress 12 Inch Mattresses King Size in a Box,Superior Hybrid Mattress with Memory Foam for Extra Lumbar Support,Maximum Support, Firm (12 Inch, King (U.S. Standard))

    • Based on 26 reviews
Condition: New
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$329.99 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, May 10
Order within 12 hours and 6 minutes
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Size: King (U.S. Standard)


Style: 12 Inch


Features

  • Turn Off Pressure. Float into Sleep:The OFFTRZ 12 inch King Size Hybrid Mattress adjusts to your body for personalized comfort. The soft, pressure-relief plush top layerlow-resistance foam and gel memory foamcradles every contour. Experience a floating feel with no instant pushback, just multi-layer contouring comfort.
  • Gently Lifts and Supports Your Lower Back (Dual-Zone Support):Zoned cushioning foam contours to your body while keeping you lifted. The Superior Zoned Support System, featuring 8.5 high-compression pocketed coils with reinforced zones and edges, provides enhanced lumbar support and stability, making this King 12 inch mattress a great choice for those needing extra reinforcement.
  • Soft Yet SupportiveThe Perfect Feel Sleepers Love:It all starts with the OFFTRZ High-Compression Spring Systemshorter coils for stronger support and a thicker, more contouring comfort layer. The 8.5 high-compression pocketed coils reinforce the edges and isolate movement, ensuring balanced comfort in this hybrid mattress.
  • Stay Cool, Sleep Naturally:The 12 inch queen mattress is comfortable, breathable, and cooling. The gel memory foam effectively wicks away moisture, keeping you cool and dry throughout the night. The independent pocket spring system enhances airflow, preventing trapped heat for a cooler sleep experience.
  • CertiPUR-US Certified & Worry-Free Warranty:All foams in this firm mattress are CertiPUR-US certified, ensuring durability and safety. We offer a 10-year worry-free warranty. Allow 72 hours for full expansion after unboxing. Unbox with caution as the mattress may expand rapidly. For any assistance, please contact our customer support team.

Brand: OFFTR z


Size: King (U.S. Standard)


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


Top Style: Euro Top


Cover Material: Plush


Number of Layers: 5


Fill Material: Hybrid Springs, Gel Memory Foam, Memory Foam, High Density Foam


Weight Limit: 600 Pounds


Special Feature: Back Pain Relief, Zone Support, Pressure Relief, Promote spinal alignment, Edge support enhancement


Color: Cool White


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 70 pounds


Manufacturer: OFFTRZ


Item model number: OFB2


Date First Available: April 16, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Perfect softness
Size: Queen (U.S. Standard) Style: 12 Inch
So I tried it for 10 days and this is really what I want…… Not too soft as my old one that will make my back hurt, and not too hard to make my shoulder stiff. would buy another one for the other bed soon
Reviewed in the United States on April 30, 2025 by Vicky_J
    • Firm for back sleepers
Size: Queen (U.S. Standard) Style: 12 Inch
Mattress is very firm i am back sleeper and issue always was waking up with back pain this mattress is not making my back hurt. It provides the support as a back sleeper. Arrived in compact packaging and was easy to unbox
Reviewed in the United States on April 30, 2025 by Shumaila Gill
    • Good mattress for the price
Size: Queen (U.S. Standard) Style: 12 Inch
The media could not be loaded. I was expecting a big giant mattress delivery however it came packed properly in an air compressed, vacuumed bag and box. When I opened within few minutes it claimed its actual size. Very good quality, stiffness is also perfect not too hard and not too soft . I am suffering from backaches hopefully it will give me nice feel and will help me with back pain. ... show more
Reviewed in the United States on May 1, 2025 by Ruc
    • Affordable, Super Plush, Hybrid Mattress! 🛌 💤
Love this mattress! Looks super fluffy right out of the box! Easy to assemble, just open the box, unseal, and let expand for about 72 hours for full expansion and that’s that! Medium firm support, but definitely a plush level of comfort!! The layered design allows you to sleep however you please (back, stomach, sides) comfortably with a 600lb weight limit. 5 layers of Hybrid Springs, Gel Memory Foam, Memory Foam & High Density Foam! The mattresses “Zone Support System” provides back pain & pressure relief! Great price and value for the quality of the mattress. Long gone of the days of spending $1k on a mattress or even needing a box spring anymore on some frames! 🙌🏽 ... show more
Reviewed in the United States on April 29, 2025 by Shonda
    • Nice and Firm
Size: Queen (U.S. Standard) Style: 12 Inch
The media could not be loaded. I have been looking for mattress with the right firmness for a while. This one fits my needs perfectly. It expands super fast like within a couple hours. Not much smell which is a plus.
Reviewed in the United States on May 1, 2025 by Larry Miao
    • Very nice mattress!
You would never realize just how nice this bed is from the price. It's super cozy! It's not overly squishy or anything like that. There's still plenty of support, but it has just the right amount of give to it where you don't wake up with back pain. It is a hybrid design, so it uses both inner springs and memory foam in it. The advantage I've found with the hybrid beds is you don't have the problems with them no expanding fully, like can be the case with just memory foam. The springs force the mattress to fill out. But then there is still some memory foam, so you get the comfort of having that, but with the added benefits of a longer last bed and one that fills out properly that you get with innerspring. Because the bed comes in a box, it made it super easy to haul right into the bedroom and then open it up there. No need to try and maneuver a fully expanded bed down the hallways and around tight corners. My son's bedroom is around a L shaped hallway and if it wasn't for the bed-in-a-box design, I don't know how we'd get anything other than a twin in his room. Even the fabric the top of this bed is made with is so nice. They did a great job with this mattress and I'm very impressed! ... show more
Reviewed in the United States on April 16, 2025 by HDT
    • Great medium firm mattress that is well made
Very comfortable mattress! Easy to unpackage and let size up to full shape. No aftersmells once it's been set out for a day either in my experience. Fit box frame as it should also. Build quality looks and feels nice, seems like a well made mattress. I'm a stomach sleeper and rotate on my back at times, both positions felt good and I was never uncomfortable sleeping either way. It was just soft enough that you feel very comfortable, but firm enough you didn't sink to weird positions, so you had the support needed as well. Nice balance to the feel at a medium firm level. ... show more
Reviewed in the United States on April 30, 2025 by James E. Tucker
    • A perfect mattress!
This hybrid mattress is around the medium firmness range. It's honestly the best of both worlds. It's soft enough to conform to your body just enough to be super comfortable, but still firm enough that your not sinking into the mattress with no way out. The mattress is a bit heavy. It was easy to set up. It came vacuum sealed and inflated almost instantly so that we were able to enjoy it that night. There was no odor when opening it and the overall workmanship is very nice. This is a great quality mattress as far as I can tell and at a great price point. ... show more
Reviewed in the United States on April 28, 2025 by Christy Ann

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