Search  for anything...

King Mattress 12 Inch King Size Memory Foam Firm Mattress Fiberglass Free, Breathable and Supportive , Pressure Relief and Comfortable Rest - Arrives in a Box for Convenient Shipping and Easy Setup

  • Based on 156 reviews
Condition: New
Checking for inventory...

Notify me when this product is back in stock

$459.99 Why this price?
Holiday Deal · 49% off was $899.00

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Unavailable
Fulfilled by Amazon
Available payment plans shown during checkout

Style: 12" Firm


Size: King


Features

  • Fiberglass free Once, we had used fiberglass; Long long ago, we haven't been using fiberglass any more. You and your family's health is our primary concern and protection.gg
  • MATERIAL & CONSTRUCTION: Iyee Nature 12 inch king firm mattress gel memory foam mattress is designed with three layers all-foam system, including 2.5" gel memory foam, 2" of High hardness confortable layer,7.5" high density base support foam for ultimate comfort.
  • COMFORTABLE & BREATHABLE: Iyee Nature king size mattress All-foam bed design combined expertise and the best materials with advanced sleep technology. Memory foam conducive to continuous airflow & breathable; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foams adapt and conform to your body for optimal pressure relief; Specialized foams reduce motion transfer of a partner so your sleep is undisturbed.
  • HEALTH & HYPOALLERGENIC MATTRESS: The foam and memory foam materials has been certified by CertiPUR-US and Oeko-Tex Standard 100 without harmful substances like formaldehyde, mercury, and other heavy metals. You can rest assured to use a king size mattress in order to pursue a stable sleep
  • [Warranty]: Iyee Nature king size mattress is a kind of mattresses specially designed and produced by us. We are a manufacturer specializing in the design and production of mattresses. We also have a professional production R&D and QC team. Our mattresses have a 10-year warranty. If for any reason you are not satisfied, please feel free to contact us. Note: Please wait up to 72 hours after opening the mattress, the mattress will return to king size mattress and eliminate the smell

Size: King


Special Feature: Foam mattress


Fill Material: Memory Foam


Brand: IYEE NATURE


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


Top Style: Tight Top


Color: Bule


Construction Type: Foam_construction


Product Care Instructions: Hand Wash Only


Product Dimensions: 76 x 80 x 12 inches


Item Weight: 79.8 pounds


Department: Unisex Adult


Manufacturer: IYEE NATURE


Date First Available: August 22, 2022


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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
  • Affirm Pay in 4
  • 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.

Top Amazon Reviews


  • The 12 inch Firm is No Joke
Style: 12" Firm Size: King
My Son purchased what they call a Medium/Medium Firm mattress that he likes, I sat on his bed and it was not bad, it gave a lot sitting on it but when you lay, not so much, it felt better than a reg mattress, but I wanted to try something a litter firmer after had 2 back surgeries and my wife also has lower back issues, that would leave her sore on our old mattress. I spent extra on a firm one. When I first laid on this one I was thinking I made a mistake, It was so much firmer than my son's... It barely sank half as much as my son's, sitting on the end of the bed, and laying down the top layer molds to your body but I don't sink as much as my son's medium firm... I was sure my wife was not going to like it, and I thought I would be uncomfortable for her, but after the first night she said she slept well, and after a week not one sore back in the morning. It is hard trying to find information on the different firmness of these foam mattresses, some are listed as medium firm in the item description but the manufacturer notes says medium, so it is hard to trust what a medium memory foam mattress is... I'm 5'10 218lbs and the support is different by a wide margin between a medium/medium firm and this Firm mattress. I figured I am already saving a lot buying a memory foam mattress versus a traditional good quality mattress from a mattress store. I had started looking to get the best I could for around $300 but I noticed they were all mediums of some type, while most firm mattresses are in the $450 plus price range at least for a 12-inch King one. So glad we went this route. ... show more
Reviewed in the United States on July 26, 2023 by JJR

  • 10inch plush
Style: 10" Plush Size: Queen
So I was super excited to get this bed I never heard of a plush memory foam received it today inflated in about 5 hours I will update on how sleep is but for now I am in love. true to size queen and its not doughy to where you just sink in it supports just right amazing inexpensive purchase
Reviewed in the United States on September 13, 2023 by Jetermrs

  • Queen medium firm
Style: 10" Firm Size: Queen
I ordered a queen medium firm. I’d say it’s more firm than medium firm but still cozy. Only took a few hours to expand, I unzipped the zipper to help it expand faster. I was skeptical about ordering this because of the other reviews but it’s worth it. Fit my bed frame nicely and I had no issues.
Reviewed in the United States on July 8, 2023 by Ella

  • GOOD, NOT GREAT
Style: 12" Firm Size: Queen
The product description says that this mattress is firm. True, it is firm. However, after laying on the mattress for a few hours in one position, the memory foam has sunk in enough to make it difficult to "get out of the rut" and change positions.
Reviewed in the United States on September 24, 2023 by Donna Carick

  • I am so happy I didn't buy a mattress from a big box store
Style: 10" Firm Size: Queen
I LOVE firm mattresses and this mattress is one of the most firm I've ever felt at literally 1/2 the price of my old firm mattress. All the other mattresses in the box stores I looked at were 3 times as much. I am really happy with this. I love it.
Reviewed in the United States on August 1, 2023 by N. Juntilla

  • Perfect mattress
Style: 12" Firm Size: Queen
It is a perfect fit for a queen size bed as shown in the picture. I love the firmness.
Reviewed in the United States on August 19, 2023 by Amazon Customer Amazon Customer

  • Worth it
Style: 12" Firm Size: Queen
Only would purchased a mattress from furniture stores and was skeptical of a mattress in a box but was totally worth the investment.
Reviewed in the United States on August 8, 2023 by Alan Arellano

  • Wow, they really mean firm!
Style: 12" Firm Size: King
When they call it firm they meant it! I'm 215 lbs and don't feel any give, it is like lying on a hard wooden floor. Hopefully the foam will soften with use. We already have a medium from another manufacturer that is very soft, so thought we'd go for firm..
Reviewed in the United States on July 24, 2023 by colinmcc

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for inventory...