Avenco King Size Mattress, 12 Inch King Mattresses in a Box, Hybrid Spring Mattresses with Comfort Foam and Pocket Coils for Pressure Relief & Motion Isolation
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Size: King (U.S. Standard)
Style: 12 inch
Features
- The Individually Wrapped Pocket Spring Bring The Motion IsolationThis Avenco hybrid king mattresses use hundreds of individually wrapped springs to effectively minimize the transfer of motion. This feature is particularly beneficial when one partner's movements may disrupt the other's sleep. Creating a serene and peaceful sleep environment ensures a more peaceful, undisturbed sleep experience for everyone.
- Pressure Release And Comfortable SleepThe 12-inch king-size mattress is designed with spring-wrapped individual pocket springs to provide optimal support while minimizing the risk of sagging or collapsing, effectively maintaining the natural curvature of the spine. The coil system facilitates air circulation, preventing the build-up of excess heat and ensuring a cooler, drier surface for a more comfortable sleeping experience.
- Comfort Foam For A Clean Sleep EnvironmentWith its CertiPUR-US certified comfort foam, this hybrid mattress effectively eliminates unwanted odors, regulating temperature, and ensuring a dry and clean sleeping environment. Furthermore, the hybrid design allows for edge support on both sides of the mattress to prevent any potential slipping when sitting on the edge of the bed.
- Quality AssuranceAll Avenco king mattress in a box is made of CertiPUR-US-certified foam and OEKO-TEX-certified cover. Guarantee that the materials used in the mattresses meet stringent health and environmental standards, ensuring a healthy and restful sleep environment for consumers.
- Worry-Free PurchaseThe king mattresses 12 inch are backed by a worry-free purchase with a no-risk 100-night trial and a 10-year limited warranty. The mattress is vacuum-packed and shipped to your doorstep. To ensure the best sleeping experience, we recommend allowing at least 48-72 hours for the mattress to fully expand. If you encounter any issues, please feel free to contact the Avenco customer support team.
Description
Avenco King Size Mattress, 12 Inch King Mattresses in a Box, Hybrid Spring Mattresses with Comfort Foam and Pocket Coils for Pressure Relief & Motion Isolation
Brand: Avenco
Size: King (U.S. Standard)
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 116.2 Pounds
Item Firmness Description: Medium
Top Style: Euro Top
Cover Material: Comfort Foam
Number of Layers: 3.0
Fill Material: Comfort Foam, Pocket Coils
Weight Limit: 500 Pounds
Item Weight: 116.2 pounds
Product Dimensions: 80 x 76 x 12 inches
Item model number: A-OMSNWP
Age Range Description: Adult
Date First Available: January 16, 2024
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 90 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
I’ve been sleeping on this 10-inch innerspring mattress for a few weeks now, and I’m very impressed with the overall quality. It provides a great balance between firmness and comfort — supportive enough for my back, but still soft enough to sleep comfortably through the night. The mattress arrived well packaged and expanded quickly after opening. There was only a slight odor at first, which disappeared within a day. I also appreciate how sturdy the edge support is; it doesn’t sink when I sit on the side, which is a big plus. Another thing I like is the breathability. The spring system allows good airflow, so it doesn’t trap heat like some foam mattresses do. I sleep cooler and wake up feeling more refreshed. For the price, this mattress is an excellent value. It feels much more expensive than it is and works perfectly with my bed frame. I would definitely recommend this mattress to anyone looking for a comfortable, supportive, and affordable 10-inch spring mattress.
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Reviewed in the United States on December 24, 2025 by Shizhen yang Shizhen yang
Size: Queen (U.S. Standard)
Style: 12 Inch
I recently purchased this 12 inch hybrid mattress in queen size and I couldn’t be happier with my choice. It was nicely wrapped in a box and it only took a couple days to expand fully. The balance between comfort and support is exceptional, allowing for a restful night’s sleep. Its firmness cradles my body without causing discomfort and the breathable material keeps me cool throughout the night. The support is impressive and it has actually reduced my back pain. This mattress has significantly improved my sleep quality, making it a worthwhile investment for anyone in need of a good night’s rest. Highly recommended!
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Reviewed in the United States on December 5, 2025 by Dawn
Size: King (U.S. Standard)
Style: 12 Inch
This mattress exceeded my expectations. It has a soft, quilted top that feels comfortable as soon as you lie down, while still providing good support. The firmness is medium to medium-firm, which works well for back and side sleeping. The mattress feels well made, with even padding and no sagging. It holds its shape nicely and doesn’t feel too soft or too hard. For the price, the quality is very good and it looks clean and sturdy
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Reviewed in the United States on January 16, 2026 by Dario Dario
Size: Queen (U.S. Standard)
Style: 12 Inch
I’m really impressed with this 12-inch queen mattress. The individually wrapped pocket springs do an amazing job at motion isolation - my partner’s movements don’t disturb me at all anymore. The CertiPUR-US certified foam provides just the right balance of support and comfort, keeping my spine aligned while feeling plush. I used to wake up hot, but the enhanced airflow design keeps me cool throughout the night. Setup was incredibly easy since it came compressed in a box. After a week of use, my back pain has noticeably decreased. For under $190, this mattress offers premium quality at an unbeatable price. Highly recommend for anyone looking to upgrade their sleep!
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Reviewed in the United States on December 3, 2025 by steven
Size: Twin
Style: 8 Inch
I bought the 8 inch mattress for my almost 4 year old and it’s super comfortable and perfect for her size. I have an all foam mattress that I’ve had for about 4 years and I wish I would have bought a hybrid spring mattress like this. It’s the perfect height for her bed frame. It expanded quickly and had no odor at all. We ripped open the plastic together and my daughter was excited to watch it expand. The corners do sink in and make it difficult to sit on the edge, 2/4 corners are visibly sunk in. Overall though, this is is a great bed for a toddler/ growing child and I’ve slept in it and can attest that it is very supportive and comfortable. I was waiting to get her a new bed until I could find something affordable and comfortable. This bed would be something I would pick out in store but I’m grateful that I was able to just buy it online and have it shipped to me. Definitely would recommend this for all ages. It’s not too firm or too soft, it’s not bouncy but supportive. I may order a queen size to replace my current mattress bc the price is reasonable.
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Reviewed in the United States on September 15, 2025 by Katlyn J
Size: King (U.S. Standard)
Style: 12 Inch
I purchased this Mattress a few weeks ago, this mattress felt plush but supportive, it’s soft enough to relieve pressure points but still supportive enough so I don’t feel like I’m sinking too deeply. I wake up with less stiffness and back aches than I used to. The mattress came in a box and was very easy to set up. It expanded to full size overnight and didn’t have any strong chemical smell that some mattresses have. The cover material feels soft and durable, and the mattress overall feels well made for the price point. Only thing could improve is the shipping speed, btw my mattress cover is 12 inch as well, and it fitted well
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Reviewed in the United States on January 18, 2026 by Juan Juan
Size: King (U.S. Standard)
Style: 12 Inch
This hybrid mattress is a good choice! The memory foam layer cradles my body perfectly, relieving pressure on my shoulders and lower back. The breathable cover and high-density foam keep me cool in summer and cozy in winter. The medium-firm feel is ideal for back pain sufferers and anyone craving cloud-like comfort. Wish I’d bought this sooner!
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Reviewed in the United States on January 16, 2026 by jasmin
Size: King (U.S. Standard)
Style: 12 Inch
My cat sometimes sleeps with us on our bed, so we wanna buy a bigger size mattress for better spacing. We ordered the king size mattress and it is delivered faster than estimate. The mattress is compressed and rolled in a way convenient for moving, and get inflated very quickly after unpacking it. The mattress is thick, so it is not too soft to cause back pains. It fits very well to the king size bedframe we bought, and as it is supported by string, the shape retention is also good. Since the mattress is thick, I would suggest not buying a too high bedframe and no need to add a topper.
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Reviewed in the United States on January 15, 2026 by Ziqi Dong Ziqi Dong