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Jan 10, 2026 1:09 AM

KOW Mattress Queen 12 inch Hybrid Mattress in a Box, Upgrade 7-Zone Support $139.99

$140

$290

51% off
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KOW Mattress Queen 12 inch Hybrid Mattress in a Box, Upgrade 7-Zone Support $139.99

Free shipping.

About this item
  • Enjoy the comfort and support of this 12-inch Queen Hybrid Mattress from KOW. Featuring an upgraded 7-zone support system, the mattress provides targeted pressure relief for your head, shoulders, back, waist, hips, legs, and feet, ensuring a restful and ergonomic sleep experience.
  • The queen mattress is constructed with CertiPUR-US certified materials, ensuring it is safe and skin-friendly. The breathable design promotes airflow, keeping you cool and comfortable throughout the night.
  • This hybrid mattress is compatible with adult adjustable bases, providing you with customizable comfort. The reinforced edge support and low motion transfer features offer a stable and undisturbed sleeping environment.
  • Crafted with safe materials, the KOW 12-inch Hybrid Mattress is free of harmful substances such as formaldehyde, fiberglass, mercury, and heavy metals, ensuring a healthy and worry-free sleeping experience.
  • The memory foam top layer contours to your body, providing personalized support and maintaining your natural body shape for optimal rest.
  • Delivered in a convenient bed-in-a-box design, this mattress can easily be transported and set up in your home, fitting through narrow hallways and staircases.
  • Backed by a 10-year warranty, the KOW 12-inch Hybrid Mattress is a reliable and long-lasting investment for your sleep comfort.
https://www.walmart.com/ip/KOW-Ma...5193533677
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Community Notes
About the Poster
KOW Mattress Queen 12 inch Hybrid Mattress in a Box, Upgrade 7-Zone Support $139.99

Free shipping.

About this item
  • Enjoy the comfort and support of this 12-inch Queen Hybrid Mattress from KOW. Featuring an upgraded 7-zone support system, the mattress provides targeted pressure relief for your head, shoulders, back, waist, hips, legs, and feet, ensuring a restful and ergonomic sleep experience.
  • The queen mattress is constructed with CertiPUR-US certified materials, ensuring it is safe and skin-friendly. The breathable design promotes airflow, keeping you cool and comfortable throughout the night.
  • This hybrid mattress is compatible with adult adjustable bases, providing you with customizable comfort. The reinforced edge support and low motion transfer features offer a stable and undisturbed sleeping environment.
  • Crafted with safe materials, the KOW 12-inch Hybrid Mattress is free of harmful substances such as formaldehyde, fiberglass, mercury, and heavy metals, ensuring a healthy and worry-free sleeping experience.
  • The memory foam top layer contours to your body, providing personalized support and maintaining your natural body shape for optimal rest.
  • Delivered in a convenient bed-in-a-box design, this mattress can easily be transported and set up in your home, fitting through narrow hallways and staircases.
  • Backed by a 10-year warranty, the KOW 12-inch Hybrid Mattress is a reliable and long-lasting investment for your sleep comfort.
https://www.walmart.com/ip/KOW-Ma...5193533677

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6 Comments

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Jan 10, 2026 3:59 AM
155 Comments
Joined Apr 2009
jimmyfishermanJan 10, 2026 3:59 AM
155 Comments
Any one used this before?
1
Pro
Jan 10, 2026 4:43 PM
12.5K Comments
Joined Jul 2008
c2nah777
Pro
Jan 10, 2026 4:43 PM
12.5K Comments
Quote from jimmyfisherman View quoted comment :
Any one used this before?
  • Over 3000 reviews on WM's site. 4.3 avg rating. I am starting there.
  • 3rd party seller.
  • 90-Day Return policy.*
    *What I don't care for is that you cannot return it to the store, if not satisfied. They have the number to call WM to set up a return.
  • Many in the 1-star reviews complain about no response from seller. IDK if they followed proper procedure or not to deal with returning, or if they meant after return period regarding warranty issues.
  • Listed with 10-year warranty*
    *I see a 1-star review complaint (with a picture) that the seller refused to honor warranty for someone that the seams split within 6-months on one side. And it obviously looks like poor workmanship.

Complaints about it sagging, uneven lumps, coils hurting back.
Last edited by c2nah777 January 10, 2026 at 10:00 AM.
Jan 10, 2026 6:25 PM
61 Comments
Joined Dec 2014
NickH4667Jan 10, 2026 6:25 PM
61 Comments
Returning the a mattress with WM can be a pain the ass... the 2x I returned one with Amazon I was told to donate it... so much easier.
Jan 10, 2026 6:47 PM
2.2K Comments
Joined Feb 2007
techie333Jan 10, 2026 6:47 PM
2.2K Comments
Quote from NickH4667 View quoted comment :
Returning the a mattress with WM can be a pain the ass... the 2x I returned one with Amazon I was told to donate it... so much easier.
Dystopian capitalism sort of working out for the consumer. They should just play Bezos laughing when hit return on big items as a reminder he doesn't need your big item shipped back to him because he has underpaid enough warehouse workers
Last edited by techie333 January 10, 2026 at 11:49 AM.
Jan 10, 2026 7:34 PM
32 Comments
Joined Feb 2007
HeugfdebksiJan 10, 2026 7:34 PM
32 Comments
thinking about pulling the trigger. description says CertiPUR-US and no fiberglass so it should be safe--idk if there's anything else i should be looking for in that regard
EDIT the item description changes between the firm and plush option. plush has an additional Oeko-Tex Standard 120 certification but removes mention of "no fiberglass". furthermore their replies for their 1-star reviews state that buyer pays return shipping. i'm more hesitant now
Last edited by Heugfdebksi January 10, 2026 at 12:37 PM.
Jun 25, 2026 5:48 AM
13 Comments
Joined Mar 2020
Boundedg0dJun 25, 2026 5:48 AM
13 Comments
Sagging or a crease in the middle – The way it is folded in half for shipping left a permanent crease and that the center started sagging within a couple of months, likely from stressed springs.

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