King Mattress 12 inch, Hybrid King Size Mattress in a Box, Individually Wrapped Coils & Gel Memory Foam for Back Support, Pressure Relief & Motion Isolation, Medium Firm, 365 Nights Trial
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90-day refund / replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Saturday, Mar 21
Size: King
Features
- 365 Nights Trial & Lifetime Guarantee - The industrys leading mattress assurance. Shop with total confidence. (It needs 2472 hours to fully "wake up" and expand)
- Stress-Free Returns & Exchanges - No packing, no lifting, no worries. Our expert team provides on-site pickup for all returns and exchanges. We do the work; you enjoy the peace of mind.
- Safe & Fiberglass Free - Your king mattress12 inch is made without the negative aspects of fiberglass and other fire-retardant chemicals. That means no skin irritation, no breathing problems, and no health risks for you and your family.
- 7-Zone Ergonomic Support - Your king bed mattress features seven targeted zones that cradle your body from head to ankle, ensuring proper spinal alignment and effective back pain relief for all sleep positions.
- Individually Pocketed Springs | Motion Isolation - Say goodbye to partner disturbance. Every coil in our king size mattress operates independently to absorb motion transfer, providing a stable, undisturbed surface.
- Advanced Cooling Technology - Our 3D breathable cover and pocket spring system maximize airflow, while open-cell gel foam dissipates heat 40% faster than traditional memory foam for a cool, refreshed sleep.
- Medium Firm & 50% Better Recovery - MARANON medium firm mattress king size offers a perfectly balanced . Our targeted support layers eliminate pressure points and reduce fatigue, improving sleep recovery by up to 50%.
- King Size Mattress 12 Inch In a Box - Compressed and rolled for easy handling and quick setup. Enjoy peace of mind with our U.S.-based customer service, dedicated to resolving any delivery or quality concerns promptly.
Brand: Maranon
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 111 Pounds
Item Firmness Description: Plush
Top Style: Pillow Top
Cover Material: Breathable Fabric Blend
Number of Layers: 3
Fill Material: High Density Memory Foam
Special Feature: Breathable, Durable, Pressure Relief
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 111 pounds
Manufacturer: Maranon
Item model number: US-001-193*203*30.
Date First Available: November 3, 2025
Age Range Description: No restrictions
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Mar 21
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: Queen
This is an exceptionally comfirtable Queen Mattress! The Hybrid Springs and Memory foam are so inviting and comfortable. You feel like you are laying on a cloud. Its perfectly fit for Queen size sheets and the weight of the mattress is about the same as a Spring or Memory foam Mattress. SInce the springs support the memory foam, there are no real pressure points. If you need a firm bed, this is NOT for you. Its very soft and plushy and comes in a box which I thought might mess up the springs but it rolls right out and inflates to perfect size in minutes. It also did not have that stinky smell that you get with so many Memory foam beds. Its definitly a bargain in comparison to so many mattresses out there. Must have and would reccomend!
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Reviewed in the United States on February 3, 2026 by customer review
Size: Queen
This mattress is outstanding!!! It seems to have somehow incorporated all of the benefits/ positive attributes of both soft AND firm mattress types. It was compressed upon arrival and, after cutting the plastic that was holding it together, the mattress actually sprang off of the box spring! It quickly doubled, then tripled in size; reaching it's full capacity in less than an hour. Taking the advice written on the enclosed pamphlet, I waited a full 24 hours to sleep on it. The next night, I slept better than I had in years! The mattress has a soft, memory foam feel to it while still being supportive. It handles motion transfer beautifully and would work really well for couples. Honestly, you have to try this mattress....DO NOT let it's low price fool you into thinking it's low quality or cheaply made. I've purchased 6 different mattresses over the past ten years in pursuit of a good night's sleep and am thrilled to have finally found "the one"!!
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Reviewed in the United States on January 9, 2026 by Heather Dryden Heather Dryden
Size: Queen
Welp I waited. And I waited. And I waited. I waited way way way past the 72 hours it indicates to let rise so I could get the full 12 inch. But unfortunately mine seems to have stuck slightly above 10 inch instead. It has been a couple weeks, so I gave up and finally just moved the mattress to the bed figuring it should have hit 12 inches by now. But the mattress is very firm! Normally we would be rolling into each other but we were not! Which was more the point for obtaining this! The bed actually even came with a opener to slit it which makes sense as I could see using my normal box opener which may risk slicing into the mattress itself. The mattress itself with the material is actually breathable as it indicates without feeling it would be scratchy against our skin but at the same point, a fitted sheet it going on top anyway so that would not factor too much for us. Our main factors were wanting enough support where both of us were not sinking into the mattress or each other and this mattress has completed that need. I am not sure how much of a difference the extra inches would be but just on the firmness and material, this was a great memory foam mattress!
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Reviewed in the United States on December 15, 2025 by Binary Boy Binary Boy
Size: Queen
My wife and I desperately needed a replacement for our old spring mattress that was basically falling apart. I decided to try this hybrid model because I wanted the support of coils but knew from experience that solid memory foam options often get uncomfortable and sink too much for my liking. When the box arrived, I admit I was skeptical seeing a mattress with springs rolled up and vacuum packed that tight. It is heavy, so definitely get a second person to help you move it into the room. We followed the instructions and let it breathe for the recommended time. Watching it expand was actually kind of impressive, and it successfully fluffed up to the full 12 inch height. The pillow top layer is incredibly soft and looks great. The sleeping experience has been the biggest surprise. I am primarily a side sleeper, and I feel properly supported without that sinking feeling. The individually pocketed springs seem to be doing their job because the motion isolation is excellent. My wife can move around or get out of bed and it does not shake the entire mattress like our old one did. The airflow design is also noticeable since we are both sleeping much cooler than before. It feels firm enough to support my back but the plush top keeps it cozy. Just a heads up on the unpacking process. Be very careful when cutting the plastic because the springs are under tension and the mattress wants to pop open quickly. Stand to the side so it does not knock you over. Overall, the quality feels solid and we are resting much better. ✅ Hybrid design offers great support with soft comfort ✅ Individual coils stop motion transfer really well ✅ Sleeping noticeably cooler thanks to breathable materials ✅ Expanded to full 12 inch size as promised ❌ The box is extremely heavy to move alone ❌ Takes patience to let it fully expand before use ❌ You have to be careful opening the plastic wrapper
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Reviewed in the United States on November 24, 2025 by JMacFPV JMacFPV
Size: Queen
I must say this is a great mattress for the price. I do prefer memory foam mattresses but that being said this one is just as good. I have it in my guest room but I did sleep on it a few times to “break it in” and it’s very comfortable. There are no hard spots or any other similar issues. It’s soft but also firm which is a great thing. Setup was easy it arrived packed in a box and I let it inflate and settle before testing it out. All of our guests who have slept on it so far say it’s very comfortable. Highly recommend this mattress.
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Reviewed in the United States on January 12, 2026 by Arla Marie
Size: Full
We just purchased this mattress and it’s been 72 hours and it is still exactly at -0 inches. We needed 12 inches so there would t be a gap I’m in the head board. So, we do t know if it will rise more or to send it back??
Reviewed in the United States on February 8, 2026 by Amazon Customer