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Hianab

King Size Mattress 12 Inch Hybrid King Mattress in a Box, Medium Firm Mattresses with Memory Foam Pocket Springs, Pressure Relief, Cool Fresh Sleep, Enhanced Edge Support

  • Based on 109 reviews
Condition: New
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$229.98 Why this price?
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Oct 27
Order within 3 hours and 6 minutes
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Item Thickness String: 12.0 Inches


Size: King (U.S. Standard)


Features

  • King Size Mattress: 12 inch king size mattress
  • Enjoy Healthy SleepHianab king hybrid mattress combines premium memory foam with individually pocketed coils for superior comfort and targeted support. Even weight distribution ensures restful sleep, reducing aches so you wake refreshed daily
  • Optimal Medium FirmnessPerfect balance of softness and support, favored by most U.S. consumers (per research) for consistent nightly comfort
  • Clean & Breathable DesignHigh-end knit fabric surface paired with airflow foam (millions of air holes) maximizes ventilation, keeping you cool all night
  • Motion Isolation TechnologyHundreds of reinforced independent pocketed springs minimize motion transfer, letting you and your partner sleep undisturbed for deep, restful nights
  • Tips: We recommend that you open your mattress and wait 72 hours for the mattress to fully inflate for the best sleeping experience. If you have any questions, please contact our friendly customer support team

Brand: Hianab


Size: King (U.S. Standard)


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


Item Firmness Description: Medium Firm


Top Style: Euro Top


Cover Material: Polyester Blend


Number of Layers: 2


Fill Material: High Density Foam, Memory Foam


Special Feature: Breathable, Hybrid Design, Pressure Relief


Color: Black


Item Firmness Description: Medium Firm


Number of Layers: 2


Additional Features: Breathable, Hybrid Design, Pressure Relief


Mattress Coil Type: Pocketed Coil


Construction Type: Memory Foam, Pocket Spring


Size: King (U.S. Standard)


Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th


Item Thickness: 12 inches


Item Depth: 12 inches


Item Dimensions: 80 x 76 x 12 inches


Cover Material: Polyester Blend


Fill Material: High Density Foam, Memory Foam


Mattress Comfort Layer Material: Memory foam


Brand Name: Hianab


Model Name: JENZ-US HA-12K


Product Benefits: Pressure Relief, Motion Isolation, Temperature Regulation


Model Number: JENZ-US HA-12K


Number of Items: 1


Mattress Type: Standard Mattress


Manufacturer: JNEILL TREND TRADING


Age Range Description: 18+


Set Name: King


top-style: Euro Top


Color: Black


Style Name: 12 Inch


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

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.

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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

    • Expanded in about 10 minutes and the medium-firm support has helped my lower back
Item Thickness String: 12.0 Inches Size: Queen (U.S. Standard)
Review Image by Matthew Hawkins
Review Image by Matthew Hawkins
This mattress expanded much faster than I expected. The instructions allow up to 72 hours, but mine looked fully expanded in about 10 minutes after I removed the packaging. That is what I observed with mine; I would still follow the instructions that come with your mattress rather than assume every one will expand at the same speed. The medium-firm description feels accurate to me. It is extremely comfortable, with a combination of cushioning and support that I really like. I am not an expert on all the different layers in a hybrid mattress, but I can say the finished result feels great to sleep on. The edges also feel solid, which is another part of the mattress I have been happy with. Most importantly, this mattress has helped relieve my lower-back pain. That is my personal experience rather than a promise that it will affect everyone the same way, but it has made a meaningful difference to my comfort. The photos show the mattress during unpacking and installed on my bed, so you can see both how it arrives and the finished appearance. Between the quick expansion, accurate medium-firm feel, solid edges, and improvement in my own comfort, I am extremely happy with this queen-size hybrid. It earns five stars from me. ... show more
Reviewed in the United States on September 9, 2026 by Matthew Hawkins
    • good height and firmness, ideal for seniors, good quality for the price
Item Thickness String: 12.0 Inches Size: Twin
Review Image by ALICE - TY for clicking Helpful ♥
Review Image by ALICE - TY for clicking Helpful ♥
Review Image by ALICE - TY for clicking Helpful ♥
Review Image by ALICE - TY for clicking Helpful ♥
We ordered 4 of these 12-inch Twin Hybrid Mattresses, and so far we are very pleased with our purchase. The mattresses are the thickness as described, and the height is just right for our needs, which are for seniors. The firmness is ideal. They provide enough support without being too hard, and they are not so soft that you sink down into the mattress. The height is also perfect as it makes it easy (for seniors) to sit down and get back up without the mattress being too high or too low. Regular twin sized sheets fit without any issues. The mattresses look nice and appear to be good quality for the price. We ordered them when they were priced at $125.98 each, which we felt they were priced accordingly. Overall, we are happy with the four mattresses and feel they were a good purchase for our needs. ... show more
Reviewed in the United States on September 23, 2026 by ALICE - TY for clicking Helpful ♥
    • Supportive and Comfortable
Item Thickness String: 12.0 Inches Size: Twin
I am a Senior adult female and am very pleased with the quality of this mattress. It is surprisingly quite comfortable and supportive. (I am a Senior adult female and I have not noticed an odor from the product.) I recommend the mattress!
Reviewed in the United States on September 18, 2026 by Placeholder
    • Caja rota colchón bien
Review Image by Carmen Alcover
Review Image by Carmen Alcover
La caja llegó rota, pero el colchón hasta el momento se está llenando muy bien...
Reviewed in the United States on September 9, 2026 by Carmen Alcover
    • Average mattress in this price
Mattress is good but I don’t know why I feel little itchy sometimes.
Reviewed in the United States on March 22, 2026 by Piyush N
    • 2nd review
Item Thickness String: 12.0 Inches Size: Twin
Had and issue with shipping wrote a bad review, now that I have the mattresses good quality and no issues with product
Reviewed in the United States on October 14, 2026 by jason lee
    • Don’t recommend
Item Thickness String: 12.0 Inches Size: Queen (U.S. Standard)
Sides collapse when you sit on the edge of the bed, when two people lay in the bed it creates a bowl in the center that you both roll towards. Returning the mattress , pick up is tomorrow
Reviewed in the United States on January 8, 2026 by Megan Wilhite
    • Get it-you won't regret the purchase!
I shopped around for almost a year for a mattress. I found this one had all I was looking for-hybrid, no chemical smell, medium firm and solid reviews. I am so glad I waited and found this one. Unpacking was easy. I had read warnings about mattresses suddenly almost exploding out of seal, but it was very well set up. I had to do this alone -71 year old woman with many spinal issues. Once you use the included cutter it slowly hisses and expands in a controlled way. And most importantly the mattress is the best melding of firm and cloud like softness. For the first time ever my varied areas of arthritis are all happy and I literally don't want to leave the bed! Get it-you won't regret the purchase. ... show more
Reviewed in the United States on February 1, 2026 by Amazon Customer

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