Avenco King Mattress 12 Inch, King Size Mattresses Medium Firm for Back Pressure Relief, Mattress in a Box CertiPUR-US Certified Foam Colchones
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90-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:
Only 10 left in stock, order soon!
Arrives
Friday, May 15
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Size: King (U.S. Standard)
Style: 12 Inch
Features
- Optimal Freshness & Support - This Avenco king mattress uses breathable fabric and dual-layer foam. It enhances airflow while controlling moisture and odors. Enjoy a consistently fresh sleep surface all night long.
- Targeted Comfort & Edge Support - The 12 inch king mattress offers excellent pressure relief by contouring to your body. Reinforced edges deliver firm edge support across all sleeping positions. This design ensures proper spinal alignment and comfort.
- Great Value for Any Room - Premium comfort at an affordable price point. Ideal for guest rooms, kids' rooms, and dormitory use. This king size mattress features a durable, long-lasting cover construction.
- Simple Home Setup Process - Your king mattress in a box arrives compressed for easy handling. Simply unroll and allow up to 72 hours for full expansion. The setup requires minimal effort and time.
- Certified Safe & Reliable - This king foam mattress is CertiPUR-US certified for safety. Backed by a 100-night risk-free trial period. Includes responsive customer support for your peace of mind.
Brand: Avenco
Size: King (U.S. Standard)
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 69.7 Pounds
Item Firmness Description: Medium Firm
Top Style: Euro Top
Cover Material: Cotton
Number of Layers: 2
Fill Material: High Density Foam
Weight Limit: 450 Pounds
Item Firmness Description: Medium Firm
Number of Layers: 2
Weight Capacity Maximum: 450 Pounds
Additional Features: Fire Retardant, Hypoallergenic, Low Motion Transfer, Pressure Relief, Removable Cover
Construction Type: Memory Foam
Size: King (U.S. Standard)
Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th
Item Weight: 69.7 Pounds
Item Depth: 12 inches
Item Dimensions: 80 x 76 x 12 inches
Cover Material: Cotton
Fill Material: High Density Foam
Material Type: Foam
Brand Name: Avenco
Model Name: Mattress
Product Benefits: Pressure Relief, Temperature Regulation, Hypoallergenic, Improves Sleep
Model Number: B-M01905
Global Trade Identification Number: 30
Manufacturer: PT Champion Mattress Indonesia Manufacturing
Item Type Name: Bed Mattress Conventional
Included Components: mattress*1
top-style: Euro Top
Color: White
Style Name: 12 Inch
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, May 15
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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- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: King (U.S. Standard)
Style: 12 Inch
This 12-inch king mattress exceeded all my expectations! It arrived quickly and expanded perfectly within a few hours. The medium-firm feel is just right — soft enough for comfort but supportive enough to relieve back and shoulder pressure. I’ve been waking up without any stiffness or soreness since switching to this mattress. The foam quality feels premium, and knowing it’s CertiPUR-US certified gives me confidence that the materials are safe and durable. It contours nicely to my body and keeps me cool throughout the night, even without a topper. For the price and comfort level, this mattress is a fantastic value. If you’re looking for a high-quality king mattress that balances comfort and support, this one is an absolute winner! Highly recommend it.
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Reviewed in the United States on March 7, 2026 by Joan Sily
Size: Queen (U.S. Standard)
Style: 12 Inch
This 12-inch mattress feels thick and high quality right away. The medium-firm support has really helped reduce my back pain and keeps my spine aligned. It stays cool at night and doesn’t trap heat, which makes sleeping very comfortable. The mattress expanded quickly after opening and reached full shape within 24 hours. It holds its shape well, feels supportive yet soft, and is an excellent value for the price.
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Reviewed in the United States on February 26, 2026 by Zarina Rahimova Zarina Rahimova
Size: Full
Style: 12 Inch
After installing this mattress, I was genuinely impressed by how comfortable and supportive it feels. It provides a perfectly firm feel that offers excellent support for my back while still being incredibly relaxing. The 12-inch thickness adds an extra layer of comfort, making every night’s sleep feel restful, refreshing and so easy. The foam quality is outstanding, and the CertiPUR-US certification gives peace of mind regarding safety and long-term durability. What truly stands out is the exceptional quality at such a budget-friendly price. This mattress is absolutely worth the investment, and I highly recommend it to anyone looking for comfort, support, and great value. ⭐⭐⭐⭐⭐
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Reviewed in the United States on January 29, 2026 by Wajiha saqib Wajiha saqib
Size: King (U.S. Standard)
Style: 14 Inch
I’ve been using this 14-inch King mattress for a while now, and I’m very impressed with the quality and comfort. The mattress arrived well packaged and expanded quickly with no strong odor, which was a big plus. The medium firm feel is just right it provides great support for my back while still being comfortable enough to relieve pressure on my shoulders and hips. I’ve noticed a real improvement in my sleep quality and much less back stiffness in the mornings. It holds its shape well, doesn’t sag, and motion transfer is minimal, which is perfect if you share the bed. The foam feels high-quality. Overall, this mattress offers excellent value for the price and easily competes with much more expensive brands. I would definitely recommend it to anyone looking for a comfortable, supportive king-size mattress that ships conveniently in a box.
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Reviewed in the United States on January 8, 2026 by Bullseye Bill Bullseye Bill
Size: Queen (U.S. Standard)
Style: 12 Inch
This Avenco Queen 12” mattress is the perfect balance of comfort and support. The medium-firm feel gives great back pressure relief without feeling too hard. It expanded quickly from the box and had minimal odor.I sleep cooler and wake up with less stiffness in my lower back.
Reviewed in the United States on February 20, 2026 by Amish
Size: Queen (U.S. Standard)
Style: 12 Inch
I’m really happy with this mattress. It fully expanded within just a few hours, and the medium‑firm feel is exactly what I was hoping for—not too soft, not too firm—offering great support for my back and overall body. The construction feels solid, and it’s comfortable no matter what position I sleep in. For the price, the quality is impressive. Setup was effortless right out of the box, and there was only a slight initial odor that faded quickly. Overall, I’d definitely recommend this mattress to anyone seeking a comfortable, supportive, and well‑made option.
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Reviewed in the United States on February 24, 2026 by Riya Singla
Size: King (U.S. Standard)
Style: 12 Inch
I’m absolutely thrilled with the Avenco 12-Inch King Mattress! It arrived neatly compressed in a box and expanded quickly with no odor. The medium-firm feel is just right — soft enough to be cozy, yet supportive where my back needs it most. I’ve noticed a huge improvement in my sleep quality and wake up without stiffness or pressure points. The foam feels premium and breathable, keeping me cool all night. It’s also great knowing it’s CertiPUR-US certified for safety and quality. If you’re looking for a comfortable, supportive mattress that’s easy to set up and worth every penny, this is the one!
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Reviewed in the United States on March 2, 2026 by Yaroslav Junior Ryzhak
Size: Queen (U.S. Standard)
Style: 12 Inch
This queen mattress is very comfortable and provides excellent support throughout the night. It feels spacious, well-cushioned, and helps reduce back and shoulder discomfort. The materials seem high quality and durable. It maintains its shape well and doesn’t sag. Overall, a great choice for a restful, comfortable sleep every night.
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Reviewed in the United States on March 1, 2026 by MANOJ MANOJ