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King Size Mattress, 12 Inch Firm Hybrid King Bed Mattress in a Box, with Gel Memory Foam and Individual Pocket Springs, Motion Isolation, Strong Edge Support & Pressure Relief

  • Based on 50 reviews
Condition: New
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$459.99 Why this price?

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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Tuesday, Apr 29
Order within 4 hours and 38 minutes
Available payment plans shown during checkout

Style: 12 inch


Size: King


Features

  • Enjoy A Comfortable Deep Sleep: The king mattress combines multiple layers of premium memory foam with individual support spring to provide superior comfort and targeted support. Make sure your weight is evenly distributed from head to toe, fully relaxes your muscles, which helps relieve back pain and improves your sleeping quality
  • Breathable and Healthy: The mattress king size features a breathable knit fabric top which can promotes airflow, discharge the steam and sweat from the contact surface between you and the mattress, keeping you dry and comfortable throughout the night
  • Quiet and Independent Spring: The 12 inch king size mattress is built-in high-quality independent pocket coil and slow rebound sponge, which can effectively absorb the noise and vibration caused by turning over during sleep, minimize motion transfer, so you are not disturbed by your partner turning over
  • Suitable for All Sleep Positions: The mattress king with 4 layers all-foam system, suitable for all sleeping positions. This firm mattress is made of gel memory foam, which aligns your spine and evenly disperses your body weight to relieve pressure points while you sleep
  • Strong Edge Support: The reinforced edge support of the king bed mattress can prevent it from sagging and enhance its stability. reduce the risk of rolling off during nighttime movements, thus improving safety. The reinforced edges also protect the internal structure, extending the mattress's service life
  • King Mattress in A Box: The hybrid mattress is vacuum roll packaged and delivered anywhere. The Ruoysun king mattresses come with a 10-year protection and 100 night trial. Please keep a safe distance from the mattress when unpacking to prevent injury by its instant expansion. And allow 48 - 72 hours for it to fully expand

Brand: Ruoysun


Size: King


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


Top Style: Euro Top


Cover Material: 3D Knitted Fabric


Fill Material: Gel Memory Foam


Weight Limit: 700 Pounds


Special Feature: Low Motion Transfer, Zoned Support, Pressure Relief, Back Pain Relief


Color: Grey


Coil Type: Pocketed Coil


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 66.9 pounds


Manufacturer: Ruoysun


Item model number: 12 inch King Size


Date First Available: February 26, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 29

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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Amazing deal
Style: 12 inch Size: Queen
Received mattress on Thursday, let set for the 72 hours on Sunday put on bed this mattress is amazing. Great quality, so comfortable. We both got a really good night's sleep. 10/10 on this mattress. I used the rebate on this item great price., I am very pleased with this purchase. I would buy this again. Pillow toped, lots of firmness but able to snuggle down into the bed. Great buy, great quality. ... show more
Reviewed in the United States on March 24, 2025 by Amazon Customer

  • Buy it!
Style: 14 inch Size: King
We bought this mattress after reading the reviews. We have spent $$$$ on mattress in the past with high expectations and no better sleep quality. This new mattress is totally worth it, and for the price, it’s a bargain
Reviewed in the United States on March 23, 2025 by kirk ferris

  • So comfortable
Style: 14 inch Size: King
Most comfortable bed I’ve ever bought
Reviewed in the United States on March 19, 2025 by Amazon Customer

  • Make sure it’s the size
Style: 12 inch Size: Queen
Feels so soft and comfortable
Reviewed in the United States on March 12, 2025 by Aiesha Thurman

  • Good price for a Hybrid
Style: 14 inch Size: Queen
Bed is pretty comfortable, slightly firm but if you want a bed where you sit on the edge often I wouldn't recommend this one because you sink down too much.
Reviewed in the United States on March 7, 2025 by Sabrina

  • Colchón híbrido
Style: 14 inch Size: Queen
The media could not be loaded. En buen estado se ve de buena calidad esperar 72 horas para que abra más y se estire para que logrelas 14 pulgadas se ve muy bueno realmente .se los aconsejo
Reviewed in the United States on March 27, 2025 by Lazaro

  • Sort of Noisy and pretty firm but worth the money.
Style: 14 inch Size: King
Overall a good bed however the sides aren’t very durable. I let it expand for over 72 hours as recommended. The smell wasn’t awful as it was wrapped in plastic. It’s very firm. Is a little bit noisy when moving around at night as well. But worth the money as it’s not terribly expensive. I will probably by a small memory foam mattress pad to go on top just for a little cushion. ... show more
Reviewed in the United States on March 24, 2025 by Stevie

  • Luxurious Sleep achieved!
Style: 12 inch Size: Full
While updating a few of our rooms, I wanted to replace the guest room bed mattress & frame. I found the frame, so the next step was to find a very well-developed mattress that would provide at minimum medium support. I do prefer a firmer mattress, so this was an important factor. After searching and finding a few to consider, the one that stood out for me was this one made by RUOYSUN store. Based on the visuals and product details, this appeared to be in line with what I had hoped to find. Therefore, I ordered this and now that I have this home and have had the chance to get this set up- I will say that this is a very luxurious mattress. The quality has proven to be true. I've spent a few different nights to test it out and see if the comfort would be about the same level each time. Based on this testing- I found that I had consistent quality sleep. *Special features that are worthy of mentioning: -Full Size Luxurious 12" Hybrid mattress -Gel Memory foam - premium grade -motion isolation -strong edge support -medium to firm mattress choice -offers three different depths- choose from 10,12 or 14" -dimensions for your reference: 75"L x 54"W x 12"Th -Sizes available: Full, Queen, King and Cali. King -4 Levels of foam for the ultimate night's sleep All in all, I find that the designer of this hybrid memory foam mattress did an outstanding job. I find that this is a very luxurious mattress, the comfort is undeniable. When I slept in this bed, I fell asleep what seemed quicker than my own mattress in my room. Therefore, based on having a great experience using this mattress- I would recommend this to other consumers. Thank you for reading my review. I hope it was informative and helpful. :) ... show more
Reviewed in the United States on March 24, 2025 by Exquisite reviews by Ally

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