King Mattress, 12 Inch King Size Mattresses Hybrid Mattress with Memory Foam & Pillow Top - Medium Firm Feel for Motion Isolation, Edge Support, Pressure Relief - Bed in a Box, CertiPUR-US Certified
Condition: New
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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Dec 24
Size: King
Style: 12 Inch
Features
- Hybrid mattress is more comfortable hybrid mattress king is made with high-density memory foam and hundreds of individual pocket springs. Provides strong support for every curve of your body, ensuring that your weight is evenly distributed from head to toe. This ergonomic design protects your spine for a good balance and body stress relief, providing better care for everyone and giving you a blissful sleep experience!
- High Quality Healthy Materials12 Inch Hybrid Mattress Top Cover is made of skin-friendly knitted fabric, which is certified by CertiPUR and Oeko-Tex Standard 100 in the United States. It contains no harmful substances, is breathable and moisture-absorbent, quickly dissipates body heat, and accelerates moisture evaporation, so our memory foam hybrid mattress gives your family a safe and comfortable night's sleep.
- Sports Isolation, More SleepSoft and breathable knitted fabric on the top, multi-layer memory foam, and hundreds of independent pocket springs are built in. Effectively avoid movement interference between partners and create a comfortable sleeping environment. Enjoy a quiet, undisturbed sleep with this hybrid memory foam mattress. Don't worry about bothering the other person when you roll over. Immerse yourself in a restful and comfortable night of sleep.
- Easy InstallationBrand Name The mattress comes in a king-size compression package in a box that can be easily transported to your room by one person. Remove the mattress, wait 48-72 hours for the pressure to decompress and dissipate the odor, no installation required, unfolded and ready to use. This mattress can be used with box springs, slatted frames, platform beds, or metal meshes.
- CertiPUR-US Certified - All foams in this firm mattress are CertiPUR-US certified, ensuring durability and safety. We offer a 10-year worry-free warranty. The mattress requires 72 hours to fully expand after unboxing. Due to the possibility of rapid expansion, please handle with care when unboxing. For any assistance, please contact our customer support team.
Brand: YBYX
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Top Style: Tight Top
Cover Material: Polyester
Number of Layers: 4
Fill Material: Memory Foam, High Density Foam
Special Feature: Edge support, Elastic force ,Medium Firm
Color: Black
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 86.2 pounds
Manufacturer: YBYX
Item model number: MAT-A
Date First Available: August 6, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Dec 24
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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- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: Twin
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I was a little nervous about buying a mattress online, but I’m so glad I did. This one came well-packaged and was super easy to set up — it started expanding right after I opened it. Within a few hours, it looked perfect.
Reviewed in the United States on November 5, 2025 by Arturo Rojas
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Very comfortable, but I’m so impressed by the comfort good quality great size as soon as you open it up it starts to enlarge to its regular size. I highly recommend this mattress.
Reviewed in the United States on November 4, 2025 by Jacquelyne Grubbs
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I got this for a small camper and it works great! It decompressed very quickly and had no odor once open. The springs are firm but not overly hard and the foam top is very comfortable. I really enjoy this and would absolutely get it as a home mattress.
Reviewed in the United States on November 4, 2025 by Noctuara
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A hybrid mattress combines foam comfort layers (memory foam, polyfoam, latex) with a coil support core. This design aims to marry cushioning contour with springy/back-support. A pillow-top adds an extra cushioning layer stitched on top of the mattress surface. This can improve “luxury” feel and pressure relief, especially for side or combo sleepers. Hybrids with good foam layers tend to absorb motion well (helpful if you share the bed). Memory-foam layers help reduce motion transfer. If you’re a heavy sleeper, or mostly sleep on your stomach (which often requires firmer support), this medium-firm 10″ hybrid might feel too soft or might compress more over time.
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Reviewed in the United States on October 22, 2025 by Johnwv
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This mattress comes with a tool to open the vacuum sealed bag. I appreciate that. The second picture is literally seconds after opening. It fluffs up very quickly. This mattress is good for those who like a slightly firmer support. Works well for my 8 year olds bedframe with no box spring. Quality material. No issues or concerns.
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Reviewed in the United States on October 27, 2025 by Ravae Ravae
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This mattress arrives in a surprisingly small box. Once you open it, it starts expanding quickly. I let it sit out overnight and it was ready to go. The fabric is thick and durable. It has good edge support so it doesn’t feel like you’re going to slide off the edge of the bed. It’s supportive but not hard. Overall it’s a great price for a comfortable mattress.
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Reviewed in the United States on November 8, 2025 by Kristi
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Very impressed by the quality easy delivery & sleep.. recommend this
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