King Size Mattress, 12 Inch King Mattress in a Box with Memory Foam and Individual Pocket Springs, Motion Isolation, Pressure Relief, Medium Firm Feel, Cool & Comfortable Sleep, Breathable
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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:
Only 7 left in stock, order soon!
Arrives
Dec 11 – Dec 12
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Size: King
Style: 12inch
Features
- Motion Isolation for Peaceful Nights at Home This mattress king size combines 1000+ individually wrapped coils with supportive foam to absorb movement at its source, reducing partner disturbance and creating a calm sleep space. Whether your partner tosses, a child climbs in after a bad dream, or a pet hops up for morning cuddles, motion isolation helps keep your rest undisturbed. Ideal for couples, parents, and light sleepers seeking truly restorative sleep
- Breathable Comfort for Cool & Cozy Sleep This mattress king size features contouring foams with built-in airflow channels that help release excess heat and circulate fresh air. The breathable design keeps the surface cool during hot summer nights and comfortably cozy when winter comes, creating year-round balance for every sleeper. Perfect for hot sleepers, guest bedrooms, or family use where consistent comfort truly matters
- Balanced Edge Support for Everyday Sleep After a long day, this king mattress in a box offers the right mix of gentle cushioning and steady support, adapting to side, back, and combination sleepers. Reinforced edges give you more space to stretch without feeling like youll roll off, while its versatile design fits perfectly in apartments, teen rooms, dorms, or guest bedroomsbringing reliable comfort to every corner of your home
- Easy & Convenient Setup for Stress-Free Living This firm king mattress arrives neatly compressed in a box, making delivery and moving through hallways or staircases simple. Just unbox, unroll, and allow it to expand fully within 4872 hours. Designed for modern living, it fits seamlessly into apartments, dorms, or family bedrooms, offering an easy upgrade to lasting comfort without the hassle of heavy lifting or complicated setup
- Fits Most Beds, Supports Every Dream Create your perfect sleep sanctuary with a mattress that adapts effortlessly to any bed setup. Whether its a box spring, slatted base, flat platform, adjustable bed, hospital bed, or even right on the floor, this mattress fits with ease. Thoughtfully engineered to support up to 500 lbs, it delivers reliable comfort and stability every night, letting you rest peacefully and wake up refreshed, ready to embrace your day.
Brand: WFGEY
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Top Style: Pillow Top
Cover Material: Cotton+Polyester
Number of Layers: 8
Fill Material: High Density Foam
Special Feature: Pressure Relief, Breathable, Temperature Regulating, Low Motion Transfer, Pain Relief, Fiberglass Free, Body Support, Durable, Pocketed Coil, Edge Support See more
Color: White With Black
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 74.8 pounds
Manufacturer: WFGEY
Item model number: 12K
Date First Available: September 16, 2025
Age Range Description: ALL AGE
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Dec 11 – Dec 12
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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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: King
Style: 12inch
I’m extremely satisfied with the WFGEY 12-Inch King Mattress! It arrived on time, well-packaged, and expanded quickly after unboxing. The memory foam layer provides just the right amount of plushness, while the pocket springs give great support without any sagging. The medium-firm feel is perfect, it’s soft enough for comfort but firm enough to support my back properly. I’ve been getting much better sleep since switching to this mattress, and I wake up feeling refreshed with no back pain. The motion isolation works wonderfully. I barely notice movement when my partner gets up during the night. It also stays cool and breathable, which is a big plus for warm nights. The quality feels premium, especially at such a reasonable price. Overall, this mattress exceeded my expectations in every way. I’d definitely recommend it to anyone looking for a comfortable, supportive, and affordable king-size mattress! Thanks.
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Reviewed in the United States on November 7, 2025 by BINH NGUYEN
Size: Queen
Style: 12inch
I’ve been using this WFGEY 12-inch queen-size mattress for a while now, and it’s honestly one of the best purchases I’ve made for my bedroom. It arrived tightly rolled and well-packaged, and it expanded quickly within just a few hours. There was almost no odor, which was a pleasant surprise. The mattress feels medium-firm — soft enough on top for comfort, yet firm enough to give great support for my back. I sleep mostly on my side and sometimes on my back, and it feels perfect either way. The memory foam contours nicely to my body, and I wake up without any back pain or stiffness. The cover fabric feels smooth and breathable, and I like the “Make Sleep Better” design label on the side — it actually does make my sleep better! The mattress stays cool during the night and doesn’t trap heat like some other foam beds. For the price, this mattress exceeded my expectations. It feels high-quality, looks premium, and offers great support. Definitely recommended if you want comfort and affordability in one!
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Reviewed in the United States on November 11, 2025 by ZiLiang ZiLiang
Size: King
Style: 12inch
The WFGEY King Size Mattress strikes an excellent balance between comfort, support, and affordability — making it a standout option in its price range. From the moment it’s unboxed, setup is hassle-free. The mattress expands quickly. What impressed me most was the thoughtful layering: a plush top layer that contours comfortably to the body, paired with a firm support base that promotes healthy spinal alignment. The mattress also features effective cooling technology, preventing heat buildup throughout the night — a welcome feature for those who tend to sleep warm. Motion isolation is another strong point; couples will appreciate the peaceful, undisturbed sleep this mattress provides. In short, the WFGEY King Size Mattress delivers a premium sleep experience without the premium price tag. It’s a reliable, well-crafted option for anyone seeking a restful night’s sleep and long-lasting comfort.
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Reviewed in the United States on November 6, 2025 by Nicky S
Size: King
Style: 12inch
I’m really happy with this king mattress. It arrived quickly, was easy to set up, and feels fantastic. The firmness is just right—supportive without being uncomfortable—and it’s been great for my back. I’ve been waking up with no pain and sleeping so much better. The quality feels excellent, and it’s definitely worth the price. I’d highly recommend it to anyone looking for a supportive and comfortable mattress.
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Reviewed in the United States on November 13, 2025 by Duo
Size: King
Style: 12inch
I’ve used several mattresses over the years, but this 12-inch King Size Mattress in a Box truly stands out as the best one so far! I’ve been using it for a few days (and many nights now), and I can honestly say the quality is excellent. The memory foam and individual pocket springs provide the perfect balance of support and comfort — medium firm, just the way I like it. It offers great motion isolation, so I don’t feel any movement when my partner shifts, and the pressure relief really helps me wake up without soreness. It’s also cool and breathable, which makes a big difference for a comfortable night’s sleep. Overall, I’m very happy with this purchase — great value and top-notch comfort! Highly recommended!
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Reviewed in the United States on November 1, 2025 by GR GR
Size: King
Style: 12inch
The media could not be loaded. My wife and I recently upgraded to the WFGEY 12-inch King Mattress, and we couldn’t be happier with how it has transformed our sleep. The combination of memory foam and individually wrapped pocket springs provides a perfect balance of cushioning and support. From the moment we lay down, it feels like the mattress is gently cradling my shoulders and hips while keeping my spine aligned and I have also noticed significantly less stiffness in the morning. The “medium firm” feel they describe is spot on for me, I like a firm bed. One of my favorite parts is how the mattress handles motion. Any time one of us moves around or gets up, I barely notice it. The mattress mentions “1000+ individually wrapped coils… to absorb movement at its source.” In practice, it works! Which has really helped me stay in deeper sleep cycles more consistently. On top of that, the breathable design with airflow channels means I don't wake up from being too hot, which is something I have struggled with over my lifetime. Finally, it was pretty amazing that this mattress arrived in a box, we didn't even need to get a truck to transport it from the store to our house, it was delivered! It was very easy to setup, just open the box, unwrap the bed and stand back, and it was ready within 48 hours. The edge support is impressive and you don’t feel like you’ll roll off when you get close to the side. All in all, this mattress has been a smart investment: comfortable, supportive, cool, and convenient. I’d highly recommend it to anyone looking to upgrade their sleep experience.
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Reviewed in the United States on November 7, 2025 by Lee Maness Lee Maness
Size: King
Style: 12inch
I’ve been sleeping on this King Size mattress for a couple of weeks, and I’m really happy with it. The 12-inch memory foam and pocket springs make it feel soft yet supportive — just the right medium-firm balance. It’s very comfortable and has helped relieve pressure on my back. I’ve also noticed very little motion transfer, so my partner moving at night doesn’t disturb me. The mattress stays cool and breathable all night. Overall, setting it up was easy, and I’m very satisfied with my purchase!
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Reviewed in the United States on November 9, 2025 by Loudia Moise