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KOANTTI

King Size Mattress,12 Inch Hybrid Mattress in a Box with Gel Memory Foam,Individually Wrapped Pocket Coils Innerspring,Pressure-Relieving and Supportive.

    • Based on 958 reviews
Condition: New
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$359.99 Why this price?

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Jan 20
Order within 1 hour and 9 minutes
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Size: King


Style: 12 Inch


Features

  • Sweet Sleep and Comfort Support: Koantti12-inch king size mattresses memory foam mixed with multi-layer foam and independent spring support system ensures that your weight is evenly distributed from head to toe and provides targeted support to fully relax muscles and enjoy a good sleep experience.
  • Breathable and Healthy: The 12-inch king mattress which is comfortable breathable and nature, and can discharge the steam and sweat from the contact surface between you and the mattress, so that you can keep your body comfortable and dry during sleep. The mattresses independent pocket spring system can Enhanced air circulation prevents trapped heat for a cool and comfortable sleep.
  • High-quality Topper Sponge: Koantti king size spring hybrid mattress is made of high-quality knitted fabric; multi-layer high-quality sponge keeps you away from back pain. All memory foam is CertiPUR-US certified and tested to be free of harmful substances.
  • Quiet and Independent Spring: built-in high-quality independent pocket spring and slow rebound sponge, which can effectively absorb the noise and vibration caused by turning over during sleep, dont disturb your companions, and sleep peacefully. The support system consists of hundreds of independent pockets of Composed of spring coils, it has excellent shock absorption and elasticity, and can effectively adjust the quality of sleep.
  • Worry-Free and Guaranteed: Please allow 24 - 72 hours for your mattress to return to its full shape after opening the mattress. Meanwhile Koantti Mattress comes with 10-year support. If you have any unsatisfactory issues, please feel free to contact us.

Brand: KOANTTI


Size: King


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


Top Style: Gel Top


Cover Material: Cotton


Fill Material: Gel Memory Foam and Spring in the Box


Special Feature: 12 Inch


Color: White


Coil Type: Pocketed Coil


Model Name: KNT01-K12


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 79 pounds


Manufacturer: YLJJ


Country of Origin: Korea, Republic of


Item model number: KNT01-K12


Date First Available: November 11, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 20

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Good buy, solid product
Size: Queen Style: 12 Inch
Love it. Sleep well. No complains
Reviewed in the United States on August 15, 2024 by Dessy
    • “Better than the last one for sure!”
Size: Queen Style: 10 Inch
I recently updated my son’s bed to a queen size bed so I had to make this purchase. Soon as it inflated I got jealous bc now his bed is more comfortable than mine. Set up was really easy. It’s super soft. It fit the frame of his bed perfectly. You can’t beat the price bc where else can I get a queen size mattress for under $220. AMAZON BOO! Honestly the quality reminds me of some mattress we saw for $2,000. It’s a beautiful mattress. There was no weird smell. Thanks again Amazon for coming through for your girl! I’ll be back! ... show more
Reviewed in the United States on June 25, 2024 by UNikacorn❤️
    • Cheap and comfy!
Size: Full Style: 12 inch
This mattress is a bit harder than the one I had before, but it looks and feels great.
Reviewed in the United States on August 5, 2024 by Nathan
    • Comfortable
Size: Queen Style: 12 Inch
Well made, comfortable and should hold up for years to come. I’ve been using this mattress several months now and really can’t say anything bad about it. Quality product at a very reasonable price. I would not hesitate to purchase again or recommend to family or friends
Reviewed in the United States on July 28, 2024 by Madeleine W.
    • Nice
Size: Queen Style: 12 Inch
Arrived 2 days early. Just unrolled it this morning and it "inflated" quickly. Pressed my hand on it and seems to be very comfortable. I will update after I sleep on it. Looks very nice also.
Reviewed in the United States on August 16, 2024 by Andrea Estes
    • Satisfying Purchase!
Size: Full Style: 10 Inch
This mattress is easily the best one ever owned. Was needing a new mattress for a while and was extremely hesitant to get one offline. This is easy to assemble, quick to inflate, and SUPER comfy. Wanted to find a super plush mattress yet this one is right in the middle and I LOVE it. 10/10 is all I can say. ... show more
Reviewed in the United States on August 7, 2024 by Brooke
    • Surprisingly nice Mattress
Size: Full Style: 12 inch
I purchased this for a guest bedroom. I was a little hesitant purchasing a mattress that comes in a box, but since it would not be used too much, I took a chance on it. I did let it sit for a day or so after unpackaging it like the directions say. I was really surprised at how soft and comfortable the mattress is. It feels really nice. I think this is perfect for a guest room, or for a kids bed. ... show more
Reviewed in the United States on July 26, 2024 by rich
    • Great Purchase!
Size: Full Style: 12 inch
The media could not be loaded. I tend to be skeptical and reviews are so helpful, but can be so arbitrary, so it’s hard to tell what’s going to really work for me. And since mattresses in a box cannot go back in the box, I was nervous to buy something so cheap, having no practical return option. But this mattress is AMAZING! Reviews of others said it was firm, and I suppose it is, but it’s slinky-ish and soft also. (I like a medium/firm mattress typically.) The unboxing was easy and it went from completely compacted to ready to sleep on instantly after the air sucked into the mattress. Took about 1 minute total. It doesn’t have an off-gassing smell as I have had with mattresses in the past. The value for money is absolutely unbeatable! I do sink into the mattress enough that it’s soft, but my back feels amazing and it’s good for my weight (I’m heavier). Highly recommend this mattress! Super happy with my purchase! ... show more
Reviewed in the United States on July 29, 2024 by Amazon Customer

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