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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.

  • Based on 715 reviews
Condition: New
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$229.99 Why this price?
New Year Deal · 34% off was $349.99

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Returnable until Jan 31, 2025

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Jan 19
Order within 1 hour and 16 minutes
Available payment plans shown during checkout

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


Mattress Comfort Layer Material: Memory foam


Material Type: Memory Foam


Fill Material: Gel Memory Foam and Spring in Box


Product Care Instructions: Hand Wash Only


Cover Material: Cotton


Item Weight: 59 Pounds


Item Dimensions L x W x Thickness: 80"L x 60"W x 12"Th


Size: Queen


Manufacturer: YLJJ


UPC: 739713346944


Product Benefits: Breathable,Comfortable,Improves sleep


Model Number: KNT02-Q12


Brand Name: KOANTTI


Age Range Description: Adults, Kids


Model Name: KNT02-Q12


Color: White & Black


Top Style: Euro Top


Is Customizable?: No


Construction Type: Memory Foam, Hybrid Mattress


Portable: No


Is Foldable: No


Is Electric: No


Special Features: 12 Inch


Mattress Coil Type: Pocketed Coil


Item Firmness Description: Medium Firm


Number of Layers: 12


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jan 19

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.

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Top Amazon Reviews


  • Amazing! Thick and supportive yet soft!
Size: King Style: 14 Inch
It came so thin I was scared it wouldn't be very thick but when it opened up it was so huge! It is supportive, firm, and comfy, only complaint is the edges are not firm they sink down when any weight is applied. But the value for money is amazing!!!
Reviewed in the United States on October 28, 2024 by wendy alosi

  • Good quality
Size: Full Style: 10 Inch
It's been 2 days we assembled the bed and it feels great. It's thick and firm but not hard to sleep in. The price was right too. Great choice for our guest bedroom.
Reviewed in the United States on October 29, 2024 by eleni

  • Great Medium Firm Mattress
Size: Queen Style: 14 Inch
The mattress came packaged neatly and was easy to open. A tool was provided to open the plastic to avoid cutting the mattress. The queen size was a little heavy to maneuver for 1 person but got easier once it expanded. I couldn't be more pleased with the quality, price, and comfort of the product. If you are on the fence about this purchase, I highly suggest going for it. I didn't notice any odors and the temperature of the mattress is just right. It is not a cooling mattress and it doesn't get hot. I am very happy I decided on this mattress. ... show more
Reviewed in the United States on September 8, 2024 by Reg

  • Comfortable! Really good for the price
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

  • Perfect Transition from Crib to Big Kid Bed!
Size: Full Style: 10 Inch
I recently purchased this toddler floor bed to help my little one transition from a crib, and I couldn’t be happier with the choice! The low-to-the-ground design is ideal for toddlers, making it easy for them to get in and out independently, which has boosted my child’s confidence. The bed is sturdy and well-made, providing the perfect amount of support while still being comfortable. I love the cute design—it fits beautifully with the decor in my child’s room! What I appreciate most is how this bed encourages a sense of ownership and responsibility. My toddler enjoys picking out bedding and arranging their stuffed animals, making bedtime a more enjoyable experience. Overall, I highly recommend this floor bed for anyone looking to make the transition from a crib. It’s a safe, stylish, and practical choice that both parents and toddlers will love! ... show more
Reviewed in the United States on September 26, 2024 by Home small things

  • Most impressed..
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

  • Excellent Mattress!
I bought this for my son a little over a month ago and it has held up very well! The mattress inflated quickly and he did wait 24 hours to sleep on it. He said it’s so comfortable! It does give a little if you sit on the edge as other comments have stated, but overall it is a great mattress for the value! ... show more
Reviewed in the United States on October 11, 2024 by Holly Scheetz

  • Medium firm?
Size: Queen Style: 14 Inch
I enjoy the mattress because I like really soft and plushy mattresses but my boyfriend prefers them on the firmer side. We settled for a medium firm and this is definitely very very soft. When you sit on the edges you'll sink, hard to get out of but still super comfortable. I enjoy it, but I definitely think they shouldn't advertise this as medium firm. No smell when opening it and it expanded very fast, less than 24 hours it was perfect. Overall I'm happy, can't say the same for my boyfriend. ... show more
Reviewed in the United States on October 17, 2024 by Kindle Customer

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