Queen Mattress,12 Inch Queen Size Mattresses Memory Foam Hybrid White Mattress in a Box,with Provide Support and Improve Sleep Mattresses,Medium Firm,CertiPUR-US.
Condition: New
Checking for product changes
Buy Now, Pay Later
As low as
$40.00
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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
30-day returns
Learn more
30-day refund/replacement
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:
Only 5 left in stock, order soon!
Arrives
Friday, Jul 4
Recently Viewed
Size: Queen
Style: 12 Inch
Features
- QUEEN MATTRESS BETTER SUPPORT, SWEET SLEEP: The KOANTTI 12 inch Inch queen mattress has a built-in independent pocketed spring, which works perfectly with the comfortable memory foam to ensure that your weight is evenly distributed on the queen bed from head to toe. You can eliminate fatigue and pain, fully relax your muscles and enjoy a good sleep experience.
- QUEEN SIZE MATTRESSES INDEPENDENT MOVEMENT: Our queen size mattresses are equipped with hundreds of independent pocketed springs and rebound foam, which not only provide strong support, but also effectively absorb the noise and vibration generated by turning over in your sleep, blocking the impact of your partner's movement, ensuring the quality of your sleep, and allowing you to sleep peacefully all night long.
- QUEEN MATTRESSES QUALITY & HEALTHY MATERIALS: The memory foam mattress is made of high-density first-class material, which is not only very comfortable and breathable, but also drains out the steam and sweat from the contact surface between you and the mattress, so that you can sleep comfortably and healthily. Multiple layers of high quality foam are designed to keep you away from back pain and ensure that you look refreshed the next day.
- MEMORY FOAM CERTIPUR US CERTIFIED: Our queen mattress in a box are CertiPUR USA certified and tested to be free of harmful substances, making them safe and durable, and friendly to anyone, especially pregnant women and children. You can sleep on our mattress queen size with confidence.
- PURCHASE WITHOUT WORRY: Our queen bed mattress are packaged in a compressed box. After opening your mattress, please allow 24-72 hours for it to return to its original state.Koantti mattresses come with 10 years of support. If you have any questions or concerns, our customer support team is ready to help.
Brand: KOANTTI
Size: Queen
Product Dimensions: 80"L x 60"W x 12"Th
Top Style: Euro Top
Cover Material: Cotton
Number of Layers: 12
Fill Material: Gel Memory Foam and Spring in Box
Special Feature: 12 Inch
Color: White & Black
Coil Type: Pocketed Coil
Product Dimensions: 80 x 60 x 12 inches
Item Weight: 59 pounds
Manufacturer: YLJJ
Country of Origin: Korea, Republic of
Item model number: KNT02-Q12
Date First Available: January 13, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 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.
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
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: Queen
Style: 12 Inch
This is my first bed in a box I've ever bought! I was a little nervous about the low price and not knowing what to expect, so naturally this has sat in my cart for quite a while. I purchased this mattress to replace my extremely old pillow top that I've had for well over 10 years. We have only slept on this for two nights so far, but OMG I am so impressed with how comfy this bed is!!! -We let it sit for one full day before sleeping on it, but it was pretty much ready to be used as soon as it was unpacked. No weird or chemical smells after opening. It also arrived three days early during the height of Christmas season! -Be careful when you cut the plastic off this mattress. It's vacuum sealed and literally burst open with enough force that it actually pushed me back a bit due to the inner coils! To be fair I probably opened it improperly. -It's definitely a true medium-firm. I HATE super firm mattresses. It is firm enough to provide support and soft enough to be comfy and cozy without sinking. I don't feel like I'm sinking into this mattress at all, and there are no imprints left from me sleeping on it all night. If it were any firmer it would be like laying on a board. -The edges of this bed do sink in more easily than the rest of the bed, which is to be expected considering ALL mattresses lack edge support to differing extents, but not nearly as severely as some of the other reviews had led me to believe. Some have suggested that you can't even sit on the edge of the bed without sliding off, which is honestly just silly. You absolutely can comfortably sit at the edge of the bed without sinking in or sliding off, unless you weigh over 250 pounds or are using this bed with no base. We have this bed on top of our old box spring. My partner and I are both 30, weigh around 180 and have had 0 issues with the edge support so far. I actually sleep very close to the edge of my side, and I don't feel like I'm sinking or sliding at all. -I am an all-sides sleeper, I'm turning in bed all night like a rotisserie chicken. I find any sleeping position equally comfortable on this bed. It doesn't absorb movement to the same extent as a full memory foam mattress, so if you're sharing this bed with another person/doggy/etc you will feel them move, as you would with any other mattress other than full foam. -This mattress does hold onto heat. I run hot at night and I can definitely feel the difference between my old mattress and this one. It's not excessively hot but it's enough to be noticeable. I will update this review should something go horribly wrong but overall I'm really, really happy with this purchase! It has been worth every penny so far, it's an excellent mattress for the low price point and I would absolutely purchase again. I'm so happy to have a comfy bed again. I can't wait to sleep in on this bed on Saturday morning :)
...
show more
Reviewed in the United States on December 17, 2024 by Erica
Size: Full
Style: 12 Inch
This mattress is truly the most comfortable mattress we have ever owned! It came in air sealed package, and I was worried it would take forever to get to its fullness. After the seal was opened it was normal within about 2 minutes! There was no smell and was very well made. Our previous mattress was very expensive, my husband said you are going to get what you pay for, was he ever wrong lol. He was absolutely amazed at the comfort and price.
...
show more
Reviewed in the United States on March 30, 2025 by R Griffith
Size: King
Style: 14 Inch
I'm a pretty critical reviewer and will find immediate flaws.. I'm impressed at this bed for the price.. I have no opinion on durability because I just got it but it is very well made and solid.. Right out of the box it is usable.... Within 1 hour I was laying on it with no issues... I sat on the edge of the bed and there's good support right out of the box but take note I have an embeded bed frame that offer some side support.. I have no problem sitting on the edge and I'm sure that's the case without my frame which only provides a small amound of bottom edge support.. It's very well made and very comfortable.. not too soft or hard, seems just right... No weird smell... Only problems were with shipping.. The were supposed to deliver on Tuesday but it didn't arrive until Friday.. I had to nag at Amazon to get it delievered or I don't think I would have got it as quickly.... they said something about the manufacture not sending it to a near factory probably because of the recent hurricane that hit in Florida... It was worth the wait, but I did make 2 long chat sessions before getting it after the delivery promise... It is very heavy... The poor UPS driver struggled.. I helped him and it is even heavy with 2 guys... Don't lift this by yourself! Despite those issues I still give it 5 stars! I dragged the box over my bed frame and opened it.. Made sure it would unroll in the right posiition.. The king size fit perfectly in an embedded king size frame.. Now if you are an adult I recommend a frame, but for kids it doesn't really need one... however, it is better with a frame in any case because it is just nicer that way and more comfortable in my opinion... You also don't need a frame with the 14" that I got since it is so thick you won't feel the floor, I know I had a thinner bed and this is twice the thickness.. It's going to be comfortable either way but with a frame that has spring it will make it that much better.... I added a cover but you don't need one to make it more comfortable.. It is very comfortable to lay on out of box..
...
show more
Reviewed in the United States on August 10, 2024 by Neal Vanderstelt
Size: Queen
Style: 14 Inch
I was a bit skeptical buying a mattress online but figured I would for the price. We needed a new mattress since ours was about 10 years old and literally caving in. We did not want to invest in a really expensive mattress since we are planning to move into a house in a couple of years and get a king. The mattress came really fast and was delivered by UPS. It was easy to set up and super fast, it was heavy but I managed to do it by myself as a 165 pound woman that works out. It puffed up as soon as I cut it out of the plastic, it didn’t shoot out or anything it slowly had air and by 2 minutes it was inflated. The mattress is really comfortable, the only reason I didn’t give it a 5 star was the edges don’t have as much of support as the rest of the mattress but for the value for money it was definitely worth it. This was my first mattress from a box and I have no complaints upon opening it. We got the 14inch, it’s super tall especially with a box spring. There was no smell when opening the box. I recommend this if you’re looking forward for something cheap and comfortable!
...
show more
Reviewed in the United States on September 18, 2024 by Garrett Rucker Garrett Rucker