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Avenco 14 Inch King Size Mattress, Medium Firm Hybrid Mattress in a Box

Based on 327 reviews
Condition: New
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$359.99
Save $939.01 was $1,299.00

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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Nov 7
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At a glance

Condition
New
Size
King (U.S. Standard)
Set
14 in
Model
AOMSP3014KGYN1
Dimensions
79.92 x 75.98 x 14 in
Weight
101.7 lb
Color
Grey

Features 5

  • Targeted Support: Avenco Hybrid Mattress features SmartS Coil pocket springs that offer targeted support and adapt to body curves. Helps align your spine and reduce pressure, providing balanced comfort for back, side, and stomach sleepers.
  • Cooling NanoGel Foam: Stay cool with NanoGel memory foam that promotes airflow and prevents overheating. The breathable cover keeps your King Size Mattress fresh and comfortable, offering a cool night sleep for hot sleepers.
  • Motion Isolation: Individually wrapped coils and premium foams absorb movement and minimize motion transfer. Enjoy quiet, undisturbed rest with this King Mattressideal for couples seeking stability and peace.
  • Reinforced Edge Support: The 14 Inch Hybrid Mattress uses strong edge coils to prevent sagging and slipping. High-density foam ensures lasting comfort and durability, letting you sit or sleep safely near the edges.

Specs 38

Brand Avenco
Size King (U.S. Standard)
Product Dimensions 79.92"L x 75.98"W x 14"Th
Item Weight 101.7 pounds
Item Firmness Description Medium
Top Style Euro Top
Cover Material Cotton
Number of Layers 5

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 7

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.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


Great for back sleepers!
Size: Twin Set name: 10''
Excellent mattress, especially at this price point. For side sleepers it may be a little soft, but it's a great option if you sleep on your back as I do. Have been using it since 2022, and it's still going strong. 10/10 would recommend.
Reviewed in the United States on August 13, 2026 by Farmhouse Fanatic

Perfect Mattress
Size: Queen (U.S. Standard) Set name: 10 in
I’ve been sleeping on this Avenco 10-inch Queen Hybrid Mattress for a while now, and I’m extremely happy with it. It strikes the perfect balance between comfort and support—the medium-firm feel is just right for relieving pressure on my back and hips while still feeling cushioned. The gel memory foam helps keep me cool throughout the night, and the individually wrapped coils do a great job minimizing motion transfer. I barely notice when my partner moves, which has really improved my sleep quality. Setup was simple. It expanded quickly after unboxing, and there was very little odor. The mattress feels well-made, and knowing it’s CertiPUR-US certified gives me extra confidence in the materials. ... show more
Reviewed in the United States on July 4, 2026 by Skyyy

Comfortable sleep
Size: Full Set name: 10 Inch
This mattress is better than I expected. It has zero odor. The quality sleep it provides proved it’s worth every penny. It’s a nice firm mattress. I would definitely buy again.
Reviewed in the United States on August 6, 2026 by Ainsley Johnson

Agency twin mattress
Size: Twin Set name: 10 IN
Great item for a reasonable price! Better than expected
Reviewed in the United States on June 28, 2026 by Tammy McDonough

Great option for bunk beds
Size: Twin Set name: 6 Inch
Working great for the kids bunk beds. They think they're comfortable. Purchased two for the upper two levels of the frame. They fit perfectly. I like that they don't have springs so the kids can't really bounce off the bed. I got protective covers and it didn't effect the feel of the foam mattresses. I would probably buy again. ... show more
Reviewed in the United States on August 20, 2026 by Tricia

Great for our boys
Size: Twin Set name: 6 Inch
I got one for each of the boys and they love them. I have not got one complaint about being uncomfortable so I call that a win! It’s light and easy to put on a sheet.
Reviewed in the United States on August 7, 2026 by Brittany

Comfortable If You Love Firm
Size: Full Set name: 10 Inch
I never purchased a Bed from a box before so I was skeptical. I am pleasantly surprised. This full-sized 10 inch bed has quickly become my favorite bed purchase. I have only slept on it for five nights and I am very impressed. I recommend it. I purchased the medium form. It suits me just fine.
Reviewed in the United States on September 3, 2026 by R. W.

Avenco 12 in full size mattress
Size: Full Set name: 12 Inch
It's just fair. Far less firm than my earlier mattress and retains uncomfortable heat
Reviewed in the United States on September 3, 2026 by moses n.
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