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Dyonery

Dyonery King 8 Inch Mattress, Memory Foam Bamboo Charcoal Mattress in a Box, Gel Infused Cooling Double Mattress with Fiberglass Free Cover, Made in USA, CertiPUR-US Certified, Medium 80"×76"×8"

    • Based on 339 reviews
Condition: New
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$328.99 Why this price?
Holiday Deal · 51% off was $673.99

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This item is eligible for return within 30 days of receipt

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Availability: In Stock.
Fulfilled by Dyonery
Arrives Dec 30 – Jan 4
Order within 20 hours and 29 minutes
Available payment plans shown during checkout

Size: King


Style: 8 Inch Charcoal


Features

  • Built for Comfort: The latest in sleep technology, cool gel memory foam layer for temperature regulation with bamboo charcoal gel infused memory foam for breathability layered on flex support base foam with non-slip fabric bottom for maximum comfort and support while you sleep.
  • Cool Mattress: The cooling bamboo gel memory foam not only breathes, but the air flow of creates a cooling sensation to stay cool-to-the-touch keeping you comfortable while you sleep. The Fiberglass-free FR Inner Cover provides a safe, effective flame retardant layer around our mattresses.
  • Medium Plush Mattress: Our medium-plush mattress strikes the right balance between comfort and support. Too-soft mattresses dont give proper support and can cause back problems in the long run. Too-hard mattresses dont provide pressure point relief. Medium plush is supportive for most body types and sleep positions and promotes better sleep.
  • Mattress in a Box: Our mattress is compressed and rolled up in a box for simple setup and delivered to easily fits through narrow hallways or staircases. So you dont need to struggle with how to drag the side mattress up the stairs. Simply unbox, unroll and this mattress does the rest, expanding to its original shape within 2 hours.
  • Quality customer service: If there is any dissatisfaction or problems, please feel free to contact us for support, we will reply as soon as possible.Please note that our mattresses cannot be returned once opened.

Size: King


Special Feature: Pressure Relief


Fill Material: Memory Foam Mattress


Brand: Dyonery


Product Dimensions: 80"L x 76"W x 8"Th


Top Style: Tight Top


Model Name: Memory Foam Bamboo Charcoal Mattress


Construction Type: Memory Foam


Product Benefits: Bamboo charcoal gel memory foam mattress, 100% fiberglass free, mattress in a box, cooling mattress


Product Care Instructions: Hand Wash Only


Product Dimensions: 80 x 76 x 8 inches


Item Weight: 68 pounds


Manufacturer: Dyonery


Country of Origin: USA


Item model number: EGO Charcoal-8-K


Date First Available: March 17, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 30 – Jan 4

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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  • Affirm 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.

Similar Products

Top Amazon Reviews

    • Very firm!
Size: Full Style: 8 Inch
Firstly, I have never purchased a foam mattress before so I cannot compare this mattress to others in its category but I will give my honest opinion here. I purchased this mattress for my one year old. Positives: This mattress had zero smells when it opened. I opened it midday and it was completely done inflating by bedtime and I felt comfortable putting it in my child's room by night time. The quality was wonderful and it is very light. The cover was a soft material and it had great quality foam with all the proper certifications. I was pretty happy with it upon opening. Subjective: This mattress is very firm. It does not have the support of a firm spring mattress since there are no springs. It would be like putting a memory foam topper on the floor - you have that small amount of give and it is very firm below that. The top two inches are that type of memory foam that sinks as a warms up so when you roll over at night you aren't immediately comfortable and if you have any back or hip pain and need a firm mattress, I would recommend looking for something with springs - hybrid mattresses are my favorite. The 8 inch may also be just too thin. My understanding is that the thicker mattresses have a thicker layer of the memory foam. I personally didn't mind the firmness so much, although, I didn't really love the feeling of shifting in the night and this is not something that would have worked for me in pregnancy as my hips got pretty sore from laying on my side all the time on a latex mattress - this would have been much harder on me. Regardless, I purchased this for my one year old but, unfortunately, he flipped and flopped and woke up frequently for a week before I traded this mattress for the one in the guest room (a hybrid mattress), which he slept completely soundly on. I decided to return this mattress and search for a hybrid, which will hopefully serve us better. This company did try to give me a 50% return because they could not take the full sized mattress back but I told them, within the 30 day return window, that was not acceptable. They gave me my money back but left the mattress for me to keep or donate, which was very nice of them. Four stars for quality and customer service but this mattress was unfortunately not for us! ... show more
Reviewed in the United States on July 22, 2023 by Ashley Jane West
    • 12” is firm!
Size: King Style: 12 Inch
I received the mattress on 8/11, which was the day I was moving so in that process I wasn’t able to actually unfurl it till the end of the day. However, it puffed up almost immediately. There were no sagging corners, the bed was very clean, and it was perfectly sized to a US King. After sleeping on it I’d say there’s only really some give at your pressure points, everything else is firm and springs right back when you move. I love this mattress so far. I spent months looking for one most suitable, especially because my boyfriend really wanted a firm mattress for his back and he loves this thing. Plus 12” King has really helped us get more room for our dogs to lay down without crowding us. If you want a firm large mattress, this is an absolute steal so far. I’ll try and update down the road since those are the kind of reviews that helped me during my long mattress search! (Huge bonus: I didn’t wake up with sciatic pain for the first time in months) ... show more
Reviewed in the United States on August 13, 2023 by Iz
    • Comfy bed!
Size: Twin Style: 8 Inch
This bed is so soft and comfortable. It was easy to remove from the box and easy to set up. Was delivered to our door so it didn't require a large vehicle to transport.
Reviewed in the United States on September 28, 2023 by Lori Toney
    • Comfortable
Size: Twin Style: 8 Inch Charcoal
Purchased two 8' twin sizes and they're very comfy. The design on mattress is just like the picture. Recommend for adult or child.
Reviewed in the United States on September 29, 2023 by KReneé1981
    • Cannot believe how happy I am with this bed
Size: Queen Style: 10 Inch
I purchased the Dyonery Queen green tea infused mattress and can't believe how comfortable it is. It's the perfect balance of body contouring softness on the top later with perfect firmness below. I haven't slept this good in years! This is one of the lowest cost mattresses I found on Amazon but don't let that stop you from buying it, this mattress is incredibly comfortable. ... show more
Reviewed in the United States on September 6, 2023 by William Wallace 2.0
    • Comfortable
Size: Queen Style: 10 Inch
I bought this for my guest bedroom and so far I have had no complaints.
Reviewed in the United States on September 28, 2023 by Shannon Sellers
    • 👍
Size: Queen Style: 10 Inch
I’ve had it for about 2 months now and I have no complaints! It’s not to soft & it’s not hard at all. The reviews really had me indecisive but gave it a try and ended up liking this mattress.
Reviewed in the United States on September 12, 2023 by Melissa
    • not soft enough
Size: Queen Style: 10 Inch
It's good and better than the hybrid mattress In replaced. I had ut use my 4" topper to get e softness I wanted. I got the 10 " but it's not high enough. If I was to buy again. I would get the 12" for sure. There was almost no smell. It inflated on less that 12 hours.
Reviewed in the United States on August 18, 2023 by James L. Fling

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