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King Mattress, 12 Inch Hybrid Mattress in a Box, Medium Firm, Memory Foam and Individual Pocket Springs for Pressure Relief, CertiPUR-US Certified

  • Based on 132 reviews
Condition: New
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$259.99 Why this price?
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Size: King


Style: 12Inch


Features

  • COMFORTABLE SUPPORT AND SWEET SLEEP:The King mattress combines individually wrapped pocket springs with premium memory foam to evenly distribute your weight from head to toe. This design relieves pressure points, reduces body fatigue, and alleviates aches and pains, ensuring a deeper, more restful sleep and significantly improving your overall sleep quality.
  • MOTION ISOLATION:Crafted with premium pocketed coils and slow-rebound memory foam, the King size mattress absorbs noise and vibrations from movement, ensuring your sleep remains undisturbed by your partners tossing, turning, or getting up, so you can enjoy deep, uninterrupted rest every night.
  • BREATHABLE AND CLEAN:Queblox hybrid King-size mattress features premium anti-pilling knitted fabric, offering a soft and breathable sleep surface. The comfort foam layer is embedded with millions of air pores, promoting airflow to keep you cool and comfortable throughout the night. All memory foam is CertiPUR-US certified, ensuring it is free from any harmful substances.
  • EDGE SUPPORT AND PRESSURE RELIEF:Queblox mattress is designed with reinforced edge springs to prevent sagging and maintain shape, offering lasting durability and stability. This spring system aligns with your spines natural curvature, reducing pressure points and encouraging proper sleep posture for a more comfortable rest.
  • CONVENIENT KING MATTRESS IN A BOX:Shipped compressed,rolled, and boxed for easy transportation and setup. When unpacking, please maintain a safe distance from the mattress. After removal from the packaging, please allow 48 hours for the mattress to fully expand for maximum comfort and support.

Brand: Queblox


Size: King


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


Top Style: Euro Top


Cover Material: Polyester Blend


Number of Layers: 2


Fill Material: Foam


Special Feature: Pressure Relief


Color: Grey&white


Coil Type: Pocketed Coil


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 86 pounds


Manufacturer: Queblox


Country of Origin: China


Item model number: SLA-574


Date First Available: December 27, 2024


Frequently asked questions

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

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Top Amazon Reviews


  • Sleepin like a log... finally
Size: Twin Style: 10Inch
Honestly wasn’t expecting much at this price but wow… this mattress showed up, fluffed up, and totally showed out. We got it for my youngest’s bunk bed and he’s been sleeping like a champ since. Not too soft, not a rock either... just a good solid medium feel that works. The hybrid springs and foam give just enough bounce without being loud or jiggly like the old one. Even I laid on it for a bedtime story and almost knocked out. No weird smell out of the box either it aired out quick. Also big shoutout to how easy it was to unbox and set up. I still can't wrap my head around how easy it is to get mattresses these days... I remember when you had to go into a big box store and pay hundreds of dollars on a super heavy thing that was supposed to last 20 years... Now, I don't need to be so upset when my kid has accidents at night because if worst comes to shove I can replace after a few soils... I currently recommend this product. If anything changes I will update my review accordingly. ... show more
Reviewed in the United States on June 20, 2025 by Myls Dubya Es Myls Dubya Es

  • Comfortable support for a restful sleep
Size: Twin Style: 10Inch
This twin mattress offers excellent support and comfort. The combination of memory foam and pocket springs evenly distributes my weight, reducing pressure points and improving my sleep quality. I wake up feeling refreshed and without any aches or pains. Highly recommend for anyone looking for a medium-firm mattress. ... show more
Reviewed in the United States on June 21, 2025 by Adrian Adrian

  • Great mattress
Size: Queen Style: 10Inch
I've had my mattress for about a week. Let me say that im in love. It's soft but not so soft that you sank into it, it's what I call a medium firm. It supports your body, even laying on your side. I can not speak on how long the mattress lasts. As of right now I love it
Reviewed in the United States on June 15, 2025 by Donna

  • Comfortable mattress
Size: Twin Style: 10Inch
I am very pleased with this mattress, I have slept great the past few nights!! It’s the perfect amount of support for me. Very easy to set up, not too heavy. Would definitely recommend
Reviewed in the United States on June 23, 2025 by Koki

  • Very comfortable mattress
Size: Twin Style: 10Inch
twin size.. Great bed mattress. It is far more firmer than the foam ones. Looks high quality. Very comfortable better sleep.
Reviewed in the United States on June 21, 2025 by KAREN

  • A unos días de comprarlo recomendable
Size: Full Style: 10Inch
Cómodo , tarda en terminar de estirar pero por el momento bien, recomendable . Dejarte otra reseña al pasar el tiempo haber colocado va
Reviewed in the United States on May 14, 2025 by An7

  • Made well
Size: Twin Style: 10Inch
Very satisfied good product.
Reviewed in the United States on June 27, 2025 by Charlie

  • Great mattress for a twin bed and affordable
Size: Twin Style: 10Inch
Great item, will recommend to friends and will buy again if I need it in the future
Reviewed in the United States on June 17, 2025 by Ray Gmz

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