Search  for anything...

Full Size Mattress, 12 Inch Hybrid Full Mattress in a Box with Memory Foam & Individual Pocket Spring for Edge Support, Pressure Relief, Medium Firm,CertiPUR-US.

  • Based on 182 reviews
Condition: New
Checking for product changes
$229.99 Why this price?
New Year Deal · 28% off was $319.99

Buy Now, Pay Later


As low as $38.33 / mo
  • – 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

Eligible for Return, Refund or Replacement within 100 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: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Jan 21
Order within 1 hour and 7 minutes
Available payment plans shown during checkout

Size: Full


Style: 12 Inch


Features

  • BETTER SUPPORT, SWEET SLEEP: The KOANTTI 12 inch full size 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 full mattress from head to toe. You can eliminate fatigue and pain, fully relax your muscles and enjoy a good sleep experience.
  • INDEPENDENT MOVEMENT: Our full size mattress in a box 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.
  • 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.
  • CERTIPUR US CERTIFIED: Our full size bed 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 box spring full size bed with confidence.
  • PURCHASE WITHOUT WORRY: Our full size memory foam 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: Full


Product Dimensions: 75"L x 54"W x 12"Th


Top Style: Euro Top


Fill Material: Gel Memory Foam and Spring in Box


Special Feature: 12 Inch


Color: White


Coil Type: Pocketed Coil


Model Name: KNT02-F12


Product Benefits: Breathable, comfortable, improves sleep


Product Dimensions: 75 x 54 x 12 inches


Item Weight: 54 pounds


Manufacturer: YZJJ


Country of Origin: Korea, Republic of


Item model number: KNT02-F12


Date First Available: January 13, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jan 21

Yes, absolutely! You may return this product for a full refund within 100 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


  • Great for price!
Size: Full Style: 10 Inch
The bed is great for the price! Soft but still firm enough to hold up. Size is exactly as described.
Reviewed in the United States on June 9, 2024 by Jennifer

  • This mattress is awesome
Size: Twin Style: 10 Inch
Theis mattress is beautiful and comfy. I opened the wrapping on the foundation for the mattress. It was easy and inflated quickly. It's really very nice and I'm thrilled with this purchase
Reviewed in the United States on May 28, 2024 by Kelly S.

  • Simple and comfortable
Size: Queen Style: 14 Inch
Just received this mattress and it’s amazing! Set up in no time and is better quality than expected! Eased my back pain from my other mattress and helps me stay asleep longer! Zero smell after opening. Highly recommended!
Reviewed in the United States on May 24, 2024 by shelly

  • Full mattress
Size: Full Style: 10 Inch
Exactly as pictured. Puffed up quickly but still allowed the 72 hours. Very comfortable, perfect or mess,actually love this mattress. Great value
Reviewed in the United States on May 11, 2024 by Amazon Customer

  • They fit perfect on my Trundle Bed
Size: Twin Style: 10 Inch
When I laid down on the mattress I was shocked how comfortable it was I almost took a nap right there and then!!!! My daughter came over and I told her to lay on the mattress and she felt the same thing!!! Extremely comfortable. Great buy!!!
Reviewed in the United States on June 6, 2024 by Amazon Customer Amazon Customer

  • Great mattress
Size: Queen Style: 12 Inch
This is a great mattress. I had purchased for my parents. No more back pain and they get a good night sleep. Came nicely packaged in a compressed box. Once opened it opened up to full capacity in about an hour. Very pleased with my purchase and my parents are very happy.
Reviewed in the United States on June 9, 2024 by Solsito

  • add this to cart!
Size: Full Style: 10 Inch
Okay, lets be honest here, a full size mattress for under $200 you can get delivered next day, too good to be true? I thought so buy BOY was I absolutely proven wrong. We decided it was time to update our 3 year old from his toddler bed to a "big boy bed" and were shocked that cribs now a days go from just that to full size. Okay fine, but have you seen the prices of mattresses these days? I couldn't pull the trigger on a $400 mattress for a little guy who, honestly may trash the thing in a few years. Fast forward to the NEXT DAY this thing shows up on our porch, neatly packaged in a box with a little cutter mind you in the box for cutting the plastic without damaging the mattress itself. I did not have high expectations based on the price point but, holy crap! It does say to wait, but our son is only 35# so he used it the night after we set it up and the thing is comfy as all get up! We are actually considering purchasing a king size of the same mattress for ourselves. It is firm yet, contours to you and he is a hot sleeper and the last 3 nights have been over 70 in his room and he doesn't sweat a lick. 10/10 LOVE it! no weird smell, nothing. it is perfect. do not hesitate buy it now! ... show more
Reviewed in the United States on May 23, 2024 by brianna v

  • SINKS!!
Size: Queen Style: 14 Inch
This mattress sinks. Tried sleeping on this 2 nights and got no sleep. Now that it’s out of the box I cannot return it without packaging. I called my local UPS store and they won’t take it without packaging and they won’t come pick it up without packaging so it’s non refundable. This is not medium firm. My husband and I (small people) lay in it and it sinks you to the middle so you’re fighting your way out of the sink hole all night or sleeping on top of each other all night. Worst purchase and will never buy a mattress again online solely for the fact how on earth can I return so I’m not out $$$. ... show more
Reviewed in the United States on February 28, 2024 by Ashley

Can't find a product?

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