King Size Mattress,12 Inch Hybrid King Mattress in a Box,Medium Firm,Gel Memory Foam and Pocket Springs,Pressure Relief,100-Night Trial,CertiPUR-US Certified
Condition: New
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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.
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Availability:
In Stock.
Arrives
Thursday, Dec 25
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Style: 12 Inch Firm
Size: King
Features
- DUAL SUPPORT DESIGN:The KauRelax 12 inch king size hybrid mattress combines gel memory foam, pressure-relief comfort foam, and zoned pocket coils with varying firmness to dynamically support your sleep posture and keep your spine aligned.
- TARGETED SUPPORT WHERE IT MATTERS MOST:Reinforced springs in the lumbar zone, paired with low-resistance foam, effectively support the lower back and prevent sinking in the hips. The king size hybrid mattress helps reduce back pain and relieves pressure, ensuring restful sleep.
- BREATHABLE, MOISTURE-WICKING TOP: The mattress features a high-quality top layer that delivers exceptional comfort and breathability, efficiently wicking away moisture and heat to keep your body cool and dry all night. Breathable foam and individually wrapped springs further enhance airflow, preventing heat buildup for a refreshing and comfortable sleep experience.
- King Mattress In A Box:The Mattress King measures 76"W x 80"D x 12"H and supports a maximum weight of 1500 lbs;The Mattress is compatible with most King Beds, The Mattresses are losslessly compressed into the box, which makes it easy to transport
- Worry-Free & Guaranteed:Say goodbye to sleep anxieties with the KauRelax mattress. Our foam meets CertiPUR-US standards, and comes with 30-night trial and 10-year support for safety and durability. If you have any unsatisfactory issues, please feel free to contact us.
Brand: KauRelax
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Top Style: Euro Top
Cover Material: Polyester Blend
Number of Layers: 3
Fill Material: hybrid
Weight Limit: 1500 Pounds
Special Feature: Breathable, Low Motion Transfer, Pressure Relief
Color: Cloud White
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 80 pounds
Manufacturer: KauRelax
Item model number: QY-Mattress
Date First Available: March 31, 2025
Age Range Description: Adult
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Dec 25
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.
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Top Amazon Reviews
Great mattress for guest bedroom! It's not slept on every night, but it definitely gets used when we have guests spend the night. They sleep comfortably. It's been a couple months now and it's holding up without sag or hammocking.
Reviewed in the United States on October 10, 2025 by Renee
Style: 14 Inch New
Size: Queen
Be super careful when opening it lol that's my only problem it pop out so fast it scared my dog outta the room and sorta broke my mirror .. but my mirror had a lil Crack and when the bed came at us lol it cracked my mirror definitelya 2 person job. I learned the hard way . .. bed was excellent 👌 good sleep super cozy grate feel 😴. I like it. 👍
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Reviewed in the United States on April 7, 2025 by Nini
This bed is ridiculously comfortable. We only got it a little over a week ago. So, I’m still a little sore when I wake up. BUT I know I’m sleeping better because I am sleeping through ALL of my alarms. It doesn’t matter how many I set, how loud, etc. I’ve slept through them every morning. Thankfully, I’m a SAHM and naturally wake up with my daughter. So, the only thing it has cost me thus far is my morning coffee time. There was no smell to the mattress. Although it’s big and heavy, I was able to move it upstairs and set it up on my own. It’s a perfect medium firmness, and I can soundly sleep on my side, back, and stomach with a husband and 2 large dogs. All in all, an incredible bed. Especially for the cost. But fr make sure you have a good alarm 🫠
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Reviewed in the United States on January 21, 2025 by Kaitlin
Style: 14 Inch New
Size: Queen
.Easy to open. Comfortable considering price point. Bought as a temporary measure and have used 8 weeks. I'm older and heavy with hip/shoulder issues and am sleeping well on this mattress.
Reviewed in the United States on July 26, 2025 by Kindle Customer
Style: 14 Inch New
Size: Queen
From the moment I opened the box, I could tell this mattress was high-quality! It expanded quickly, with no weird "new mattress" smell, and was ready to use right away. The first time I laid down, I was blown away by how comfortable it was—soft but with great support. The combination of springs and foam is perfect, giving me the support I need while feeling completely relaxed. Now, I actually look forward to bedtime every night! Definitely a worthwhile purchase, and I’d recommend it to anyone looking to upgrade their sleep experience!
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Reviewed in the United States on November 3, 2024 by xiaojiehuang xiaojiehuang
After a week undisturbed, the Mattress did not fully expand. Corners and sides are sagging and from the foot, looks like a big frown. Returns require it be replaced in the original box. That's like saying that you need to put the Biscuits back into the tube. Sorry to say, unless I get some help. it looks I'm stuck and out of (for me) a lot of money Not at happy about this purchase. Mattress is soft to where you can feel all the springs and has no edge support. If one is to believe all the positive reviews, It looks like I got a bad one
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Reviewed in the United States on June 3, 2025 by Critter Critter
Style: 14 Inch New
Size: Queen
Wonderful Mattress! We got this 14 inch Queen size mattress for $249.00 and what a deal! It is great quality so far. Only had for about a month so we'll see how it holds up. So far I am impressed. It is not too soft and not too firm. It formed with no sagging as soon as we took it out of the VERY heavy box. You will need 2 people to bring this thing in. I will be purchasing this again if it lasts for my daughter next.
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Reviewed in the United States on July 30, 2025 by Gina
It’s very comfortable but the corners are only 9 inches and in the middle it’s only 10 inches. The mattress is much thinner than described.
Reviewed in the United States on October 15, 2025 by Yudelka DePena