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King Mattress 12 Inch Charcoal Memory Foam in a Box, CertiPUR-US Certified, Fiberglass Free, Gel Double Mattress, Made in The USA of US Foam, 80" × 76" × 12", Medium

  • Based on 569 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Dyonery

Arrives Aug 2 – Aug 8
Order within 18 hours and 18 minutes
Available payment plans shown during checkout

Size: King


Style: 12 Inch


Features

  • Cooling & Comfortable:The Dyonery gel-infused Charcoal memory foam mattress offers you with a fresh and clean sleep environment, helps to regulate temperature and relief pain.keeping you cool and comfortable for the whole night.
  • Medium Feel Mattress: The medium feel of the mattress is designed to adapt to the body's shape and weight, it suitable for different sleeping positions and preferences. It is not too soft or too firm, providing a balance of comfort and support.
  • CertiPUR-US & Oeko-Tex Standard 100 Certified: Our mattresses are made in USA, certified by both CertiPUR-US and Oeko-Tex Standard 100, ensuring that they are free from harmful substances. The memory foam and fabrics have been independently evaluated to comply with all mandatory and voluntary safety standards for mattress products.
  • Easy Setup: Our mattresses can fit all types of frames, including box springs, floors, adjustable beds, foundations, slatted platforms, flat platforms, and hospital beds. Simply wait for 2 hours for the mattress to fully expand to its original shape.
  • 10-Year Limited Warranty for Worry-Free Sleep: We are dedicated to providing you with the best night's sleep possible through our superior products. Please note that our mattresses cannot be returned once opened.

Brand: Dyonery


Size: King


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


Top Style: Tight Top


Cover Material: Bamboo


Number of Layers: 2


Fill Material: Gel Memory Foam


Special Feature: Bamboo-charcoal , Pressure Relief


Color: Black


Model Name: CH 12"K


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 87 pounds


Department: Unisex Adult


Manufacturer: Dyonery


Country of Origin: USA


Item model number: DYO-MDV120K00CHT


Date First Available: July 5, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 2 – Aug 8

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • If you are nervous about ordering online, this is the mattress for you
Size: King Style: 12 Inch
I was really on edge about buying a mattress online, but I am extremely happy I bit the bullet and ordered this one. I read a lot of reviews and the bad ones scared me a little, but so far I am loving this mattress. Prior to ordering this one, I had an 8 year old plush mattress that was completely worn out and I kept putting off getting a new one since I didn’t want to spend $1000+ from the mattress store. This mattress is a big difference compared to my previous one, but I needed something a little more firm. It took a couple nights to get used to, but I am loving it. After opening, I let it sit for probably 5 hours, but it was ready to go by the 2 that the seller says. If you are looking for an affordable mattress, this is it. ... show more
Reviewed in the United States on June 6, 2025 by Amazon Customer

  • Worth the price (& changed my life)
Size: Queen Style: 10 Inch
I've been sleeping on this mattress for 2 months now, so here's my review. I saved my tax return for a new mattress as I really needed a replacement but ordering from Amazon was most convenient aside from not being able to try it out before using it, which made me nervous. Despite having good money set aside I really didn't want to spend more than $300 and had a handful of mattresses saved on a list. I can't remember if this one was on sale or not but it was just over $200, I believe and I'm blown away really. It arrived early, I had no issues with delivery, and I had a good space to open it and let it unroll and stuff. I also read in the instructions walking on it periodically helps with airing it out and getting it to the right size. As soon as it seemed "inflated" I laid on it to test it because I'm impatient lol and WOW! Seemed too firm at first so I was nervous but once you settle on it, it's very cushioned in a sort of "cradle" way. It doesn't give too much so you don't sink deep but it is very comfortable. HERE'S THE BEST PART (personally). I have struggled with insomnia for years. I've been regularly medicated since 2019. This mattress got me off my very sensitive/strict insomnia medication, NO LIE. Who knew all I needed was a better mattress? Not me, but on top of that, my hip and back pain have improved significantly and I sleep through the night most nights (unmedicated!!). Very personal results, but it's important to note. TLDR; it seems firm but when you settle on it, it's very comfortable, eases back pain, feels good quality, and was well worth the price. I would recommend it to people whose needs for a mattress are similar to mine. ... show more
Reviewed in the United States on April 21, 2025 by Kara Beth

  • Perfect!
Size: Queen Style: 10 Inch
Took only a day to expand. The next day I slept on it and it was perfect. It conforms to my body shape but isn’t so soft you sink in. My back feels much better with this mattress than my old one. Before I put the sheet on it I inspected it and everything looks good. No loose threads or messed up parts. I love the design on it. It has little rubber grips on the bottom to keep the mattress in place. Just perfect! ... show more
Reviewed in the United States on June 5, 2025 by Alyssa

  • For anyone struggling to make a decision
Size: Queen Style: 12 Inch
Don’t normally leave reviews but I spent a lot of time toiling over which mattress to purchase so I wanted to help anyone in the same position. This one is amazing! Especially for the price. Definitely more on the firm side, which is my preference, but it still has a softness that forms to your body as memory foam does. Probably more suited for stomach/back sleepers though. The instructions say that it takes 24 hours to fully inflate, that’s true, but I was able to sleep on it just fine hours after opening. The motion reduction is amazing too, if you sleep next to someone who moves around a lot or have pets that like to sleep with you this is the mattress for you. I bought the 12 inch and was worried it might not be thick enough but it’s perfect. Very satisfied! ... show more
Reviewed in the United States on May 17, 2025 by Kailey

  • I love my new bed!
Size: Queen Style: 10 Inch
I am absolutely in love with this mattress!!! Doesn’t even need a box spring but I prefer a higher bed so I will be purchasing one. After 2-3 days the bed was TREMENDOUSLY soft and so supportive. Quality is immaculate for the price you’re paying. Definitely beats going to sleep outfitters and paying an arm and a leg. I mention it is super soft but the bed doesn’t swallow you or feel ”too” soft, definitely doesn’t sink in which is a plus. ... show more
Reviewed in the United States on May 31, 2025 by Jazzy Marie

  • I love a good mattress in a box, great quality.
Size: Queen Style: 10 Inch
Great mattress. It came packaged well. I love that it has a dark colored cover, which you can unzip to wash. It's lightweight once it's unboxed so very easy to move yourself. The mattress is the perfect combination of soft and firm.
Reviewed in the United States on June 13, 2025 by Crystal Crystal

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