Upgraded Luxury 14 Inch Hybrid King Size Mattress in a Box, Medium Firm | Cooling Gel Memory Foam & Pocket Springs, 7-Zone Support, Back Pain Relief, Extra Edge Support, CertiPUR-US, 365-Night Trial
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Availability:
20 left in stock
Arrives
Aug 5 – Aug 6
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Size: King (U.S. Standard)
Set name: 14'' Medium Firm
Features
- Experience the Comfort of a Luxury HotelWith a medium-firm feel, these luxury hybrid king size mattresses strike the perfect balance between plush comfort and firm support ideal for side, back, and stomach sleepers. It promotes healthy 7-zone spinal alignment to help relieve back pain, gently cradles your body and lets you wake up refreshed without morning stiffness.
- Premium Healthy & Comfortable FabricCrafted with a soft Euro-top cover made from premium 4D knitted fabric, this king mattress is ultra-breathable and gentle to the touch. It is 100% fiberglass-free, certified by CertiPUR-US, and contains no irritating chemical odors creating a cleaner, safer sleep environment for you and your family.
- Cooling Gel Foam for Hot SleepersInfused with cooling gel, the top foam layer of this king size memory foam mattress actively dissipates body heat and boosts airflow for a fresher night's rest. Multi-layer high-density memory foam helps release muscle tension, so you can fall asleep faster, stay asleep longer, and wake up feeling restored without overheating at night.
- Motion Isolation & Strong Edge SupportThis mattress king size features upgraded heavy-gauge pocketed springs for long-lasting durability and excellent motion isolation so you won't feel your partner tossing and turning. Reinforced perimeter coils and high-density foam strengthen edge support, letting you enjoy the full surface without sagging or rolling off.
- 14 Inch King Size MattressThis king bed mattress measures 80" L x 76" W x 14" Th and supports up to 1,500 lbs. Compatible with all standard King bed frames. This king mattress in a box ships compressed, rolled, and boxed for convenient delivery (Maintain a safe distance when unboxing, as the mattress may expand rapidly once opened).
- Worry-Free Purchase & SupportThis mattress king is expertly engineered to address common sleep issues and optimized for everyday comfort. Each mattress undergoes rigorous pre-shipment inspection to guarantee exceptional quality. We stand behind our product with a 10-year warranty and a 365-night sleep trial. Should you have any questions, our dedicated support team is always ready to assist you upgrade your sleep experience, completely risk-free.
Description
Hiboss specializes in premium hybrid mattresses, fusing cooling gel memory foam with responsive springs for the perfect balance of comfort and support. Engineered to relieve pressure, align your spine, and eliminate motion transfer, our beds ensure cool, undisturbed rest. Backed by meticulous craftsmanship and a commitment to your satisfaction, we stand behind its quality with an industry-leading 365-night trial.
Brand: Hiboss
Size: King (U.S. Standard)
Product Dimensions: 80"L x 76"W x 14"Th
Item Weight: 61.9 pounds
Item Firmness Description: Medium Firm
Top Style: Euro Top
Number of Layers: 9
Fill Material: Gel Memory Foam, Memory Foam
Weight Limit: 1500 pounds
Special Feature: Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Item Firmness Description: Medium Firm
Number of Layers: 9
Weight Capacity Maximum: 1500 pounds
Additional Features: Breathable, Durable, Low Motion Transfer, Pressure Relief, Temperature Regulating
Mattress Coil Type: Pocketed Coil
Construction Type: Hybrid
Mattress Base Compatibility: Solid Foundation
Size: King (U.S. Standard)
Item Dimensions L x W x Thickness: 80"L x 76"W x 14"Th
Item Weight: 61.9 pounds
Item Thickness: 14 inches
Item Depth: 14 inches
Item Dimensions: 80 x 76 x 14 inches
Fill Material: Gel Memory Foam, Memory Foam
Product Care Instructions: Hand Wash Only
Mattress Comfort Layer Material: Gel Memory Foam, Memory foam
Material Type: Gel Foam, Memory Foam, Pocket Springs
Brand Name: Hiboss
Model Name: 14 IN MATTRESS HBA
Product Benefits: Back Pain Relief, Improves Sleep, Posture Support, Pressure Relief, Reduces Toss & Turn
Model Number: HBA14K-7
Mattress Type: Standard Mattress
Manufacturer: Hiboss
Unit Count: 1 Count
Included Components: Box Opener, Mattress, Product Instruction Manual
Manufacturer Part Number: HBA14K-7
Set Name: 14'' Medium Firm
top-style: Euro Top
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 5 – Aug 6
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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Similar Products
Top Amazon Reviews
Size: Queen (U.S. Standard)
Set name: 14'' Medium Firm
Great comfortable mattress for under 250. I would recommend to anyone.
Reviewed in the United States on July 27, 2026 by Thomas Smith
OK so this was a fantastic deal. I ordered the Hiboss twin size mattress at 12 inches thick. It is advertised as a hybrid mattress but for me it doesn't feel like a hybrid mattress. What it does feel like is a traditional Simmons pocketed coil mattress with a slightly cheaper top layer. Now of all the mattress types for me the traditional Simmons pocket coil mattress was the best more comfortable design. It the product description boast about having a pillow top supported by layers of gel and memory foam. I haven't taken the mattress apart and if they are in there then I suspect they are really thin layers as I don't get the sense or feel of a slow mold memory foam or a gel. And I've slept and own all these different types of mattresses. For me it is a rather cheap topping over pocketed coils of what are probably medium to low quality coils. On the bottom side you can feel the springs right on your hand. And on the top side if you push your hand down hard enough you can also feel the coils. So I think they have over sold or over exaggerated the quality of the topping portion of the mattress. While the padding over the coils isn't super think or super great it doesn't really take away from the quality of the sleep. The bed does an excellent job of providing the right amount of support at the right locations. It contours to my body just right. At the edges the mattress isn't bad. It doesn't have the best reinforced side construction when comparing it to other pocketed coil mattresses I've tried but it is decent and certainly not the worst. Setup: Set up was super easy. We simply removed it from it's package and it it unrolled and inflated on its own in a matter of seconds. Initially the mattress had a slight warp to it from being rolled up during delivery. But it quickly flattened out after sleeping on it for one night. You would never be able to tell this mattress came in a box or rolled up packaging. Temperature: The bed definitely sleep cool. I tend to have sweat at night if the bed is hot at all and I haven't had any problems like that at all. The mattress breaths well and doesn't heat up from your body temperature. Sleep type: I'm typically a side sleeper. But one thing I love about the pocketed coil mattresses, is that you can sleep on your side or back and the bed contours to your body just right. I've been sleeping on this now for over a week and I have gotten good sleep every single night. Firmness: The mattress was advertised as a medium in firmness and I can confirm that it fits right into that category perfectly. It isn't super soft where your body sinks in and the bed molds around your body. And it isn't super stiff either. Definitely a nice medium firmness. Durability: I suspect that this won't have a long a life as say a brand name Simmons or Temperpedic mattress but it doesn't have to because the price point is 2 to 3x less expensive than the brand names in the stores. I'm 100% confident it will last a good 3 to 5 years. Value: On the day of my order this was priced at $129.99 which had a $70 off coupon included. At this price it is an insanely fantastic good deal. Even at full price of $199.00 I think this is a good deal. For a 12" mattress of this quality it really is a great price value range. I believe it will last at least five years so it is a really great deal for the money. If it last even longer than that the deal just keeps getting better. Conclusion: I would definitely order another one. If this twin size mattress performs as I expect it to over the course of the next few months I plan on ordering another one in the King size. It is a really great value for the quality you get.
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Reviewed in the United States on July 4, 2026 by J. S.
This mattress arrives in a convenient, vacuum-sealed package that makes it easy to handle and transport, even in tight spaces. Once you've opened the package, you can expect it to expand and retain its full size within 24 to 48 hours, so that you can enjoy its comfort without a long wait. The mattress is free of any unpleasant odors, making it ready for use right away without needing to air out. The mattress cover is crafted from a breathable, soft knitted fabric that not only enhances comfort but also promotes airflow, helping prevent overheating during the night. This feature is especially beneficial for those who tend to sleep hot. Designed as a hybrid model, this mattress seamlessly combines layers of high-quality memory foam with pocketed springs. The memory foam layer is infused with cooling gel, which helps regulate body temperature while conforming to your shape, thereby providing targeted support and pressure relief for a variety of sleep positions—from side to back to stomach sleepers. The individually wrapped pocketed springs work in tandem with the foam, offering exceptional support and minimizing motion transfer. This means that if you share the bed with a partner, you’re less likely to be disturbed by their movements during the night. Ultimately, this mattress aims to deliver a pain-free, restful sleep experience, helping you wake up rejuvenated each morning.
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Reviewed in the United States on July 10, 2026 by Kimberly Caudle
Opening the packaging requires some caution since the compressed coils expand rapidly the moment you cut the plastic. Once fully expanded the twin mattress fits standard frames perfectly with no awkward gaps around the edges. It provides a sleep surface that blends the sink of gel foam with the active push of metal coils. You definitely notice the memory foam layer but the traditional spring system underneath dominates the overall feel making the bed quite bouncy. That bounce makes perfect sense for hybrid designs but it might surprise anyone expecting the completely deadened response of pure foam. Spending a few nights on the mattress reveals a comfortable balance of support and softness for a very reasonable price. The hybrid design allows for decent airflow so body heat dissipates easily while you sleep. The construction does have a noticeable drawback when it comes to the perimeter. When you sit directly on the side of the bed the outer foam compresses enough that you can feel the metal coils underneath which happens because the edge foam lacks density. As a versatile option for a guest room or a daily bed for a lighter individual this model offers great value even with the weaker edge support.
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Reviewed in the United States on July 12, 2026 by Fox Workshop
This is only a twin mattress, but it is like they took the nicer queen mattress and cut it in half. This is not a wimpy thinner twin bed. It is practically a foot thick like our bigger mattress. I got this for a teenager and he likes it. Medium and firm, I would say it is in between. Not really medium but not firm for sure. The pillowtop is too cushy for firm. But this thing has real springs, not just a giant block of memory foam that sweats you to death. So is it upgraded, definitely. It isn't the cheapest twin, but when you are talking about a mattress like this versus what you normally get, I think this is definitely worth it. If you make her mad and she boots you out, you will thank me. Comes rolled up right to your door, no trip to the store hoping they have one when they don't.
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Reviewed in the United States on July 16, 2026 by Amazon Customer
I ordered this for a guest bed in a small room we just renovated and it's worked out perfectly. I slept in there myself before having any guests sleep in there, and the mattress is so comfortable, I've slept in there many times since. I just can't believe it's possible to buy this quality mattress at this price. It unrolled and filled out easily after we opened it, and I slept on it the next night. No odor at all. It has a nice, medium, supportive firmness, and I expect the mattress to last years, especially as we're using it for a guest bed. I don't see how you could go wrong with this one. We have some pricey mattresses and this one can hold its own. The covering fabric is decent, but I have a mattress cover over it, and I always used them, so would suggest that too.
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Reviewed in the United States on July 23, 2026 by Elisabeth
I purchased this mattress for my guest bedroom, and I have been extremely pleased with it. The comfort level falls right in the sweet spot between soft and firm. It has enough cushioning to feel comfortable when lying down, but it still provides good support and does not leave you feeling like you’re sinking into the mattress. After expanding, the mattress reached its full shape nicely and has maintained its structure well. The corners are defined, the sides sit evenly, and it gives the bed a clean, finished appearance. One feature that stood out to me is the edge support. The edges feel stable when sitting on the side of the bed, and the mattress maintains its shape well across the entire sleeping surface. The 11.8-inch profile gives the mattress a substantial look, and the black fabric adds a modern appearance that looks great. The quilting and stitching also appear well done and add to the overall quality feel. Most importantly, it is comfortable. Guests have a comfortable place to sleep, and I have tested it myself enough to know that it provides a nice balance of pressure relief and support. Overall, this mattress exceeded my expectations and has been a great addition to our guest room.
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Reviewed in the United States on June 22, 2026 by RAINDO
We needed a new mattress for the spare bedroom. You know how that room is... The extra furniture you have gets put in there, and then you kind of forget about it. The mattress in ours was well beyond it's useful life, and so when this Hiboss option showed up, I ordered one. And for less than $130, this twin was well worth it, and makes me want to spend more time in my spare bedroom. It comes tightly rolled up, and rather leaps out of the plastic bag when you cut it away, so beware!! It seems well made, and the thickness and comfort are more than I expected, so I won't have to feel self conscious when gusts spend the night. It has coils inside, not just a foam mattress like other "beds in a box", so it was ready to go in almost no time, and it was medium firm, just as Hiboss said it would be. As a guest bedroom mattress, this twin is perfect, and I may give the king a shot when we need a master bedroom mattress here soon.
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Reviewed in the United States on June 27, 2026 by RP