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Upgraded Luxury 12 Inch Hybrid Twin Size Mattress in a Box, Medium Firm

Based on 12 reviews
Condition: New
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$139.99
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Monday, Nov 2
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At a glance

Condition
New
Size
Twin
Set
12'' Medium Firm
Model
HBA12T-9
Dimensions
75 x 39 x 12 in
Weight
38.7 lb
Color
Black
In the box
Box OpenerMattressProduct Instruction Manual

Features 6

  • Experience the Comfort of a Luxury HotelWith a medium-firm feel, these luxury hybrid twin 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 twin 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 twin 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 twin 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.

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.

Specs 30

Brand Hiboss
Size Twin
Product Dimensions 75"L x 39"W x 12"Th
Item Weight 38.7 pounds
Item Firmness Description Medium Firm
Top Style Euro Top
Number of Layers 9
Fill Material Gel Memory Foam, Memory Foam

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 2

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.

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Top Amazon Reviews


Comfy and affordable upgrade!
I got this mattress for my son who’s been needing a new mattress for a while now. Coming out of the box the mattress had been vacuum sealed and packaged as small as could be. The box was tall and thin and relatively heavy. It’s amazing how they can seal these things up! This was a super-easy setup. All that had to be done was taking off the vacuum seal, and then letting it expand to full size over 1-2 days. Only needed a pair of scissors to open. At first there was a light odor but it quickly went away after it was done aerating. This mattress is good. It’s comfortable and is a standard twin size. It’s quite plyable and will adjust forgivingly when laying in it. Feels like heaven compared to a standard box-spring style mattress. He sleeps great now. This mattress is something I’d recommend to someone else if they were looking for a softer mattress. I wish it were white as with the gray if your sheets are any other color and aren’t fully covering it then it sticks out a bit. Overall, very pleased...and affordable. Highly recommended! ... show more
Reviewed in the United States on August 1, 2026 by JuryDuty

Comfortable, Supportive, and Just Right
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. ... show more
Reviewed in the United States on June 22, 2026 by RAINDO

Great mattress
This Hiboss brand provided me with a great mattress. Does everything it says in the description. It expanded from the shrink-wrapped packaging in under ten minutes, which was honestly faster than I expected. I let it fully fluff for a full 24 hours before using it, and it ended up being incredibly comfortable right out of the gate. The medium-firm feel is supportive without being too hard, and it does a great job with pressure relief, especially for back comfort. It also stays surprisingly cool through the night, which makes a big difference if you’re a hot sleeper. Overall, it feels like a solid quality hybrid mattress with good edge support and no weird sinking spots. I could definitely see myself ordering another one from this brand in the future, especially when it’s time to upgrade another one of my kids to a full-size bed. I would recommend this mattress for the price point and quality. ... show more
Reviewed in the United States on July 3, 2026 by Tess Carrera

Twin mattress
Size: Twin Set name: 12'' Medium Firm
Mattress is very uncomfortable, you can feel the springs in your back and hips. Cheaply made. I had to buy a mattress topper to make more usable.
Reviewed in the United States on September 13, 2026 by Amazon Customer

Nice 12" twin mattress, easy to set up, well made and very comfortable, even on the floor!
I needed a twin size spare bed for the times that my grandchildren come to stay--they are growing up and don't like sleeping on the couch anymore. This mattress is quite comfortable! I unpacked it in my living room and allowed it to expand for several days before actually trying it out there on the floor, and it is great! I'm a larger person and it had plenty of spring to be comfortable for me on the floor, so I know it will work just fine for my lightweight grandkids once I get the twin frame for it assembled. It also felt cool when I laid on it but not sure how much of that cooling effect will carry through the mattress pad and sheets. It seems to be quite well sewn with the springy portion in the thinner top layer and the firmer foam layer in the thicker bottom layer. It is quite heavy but I can drag it to the bedroom when the frame is ready for it. ... show more
Reviewed in the United States on July 5, 2026 by Pug Mama

I'm a side sleeper and the firmness is perfect for me
I'm a side sleeper and I sometimes sleep on my back too, but mostly on my sides. I've tried different firmness levels, and medium-firm mattresses are what I feel most comfortable sleeping on. This mattress is firm, but my pressure points sink in slightly. The mattress contours to my shoulder and hip when I sleep on my side. I sleep pretty quickly and I wake up feeling good. I have a satin bed sheet on it and it doesn't get warm. I sleep right in the middle of the mattress the whole night. I feel the springs moving as I get into the bed, but they spring back up easily. The support is great for my weight. I allowed it to fluff up for two days after unrolling it. I didn't notice it give off any odor so I didn't feel the need to have the windows open during that time. It's been great to sleep on. It feels much better to sleep on than my other mattress. I have it on a bed frame without a box spring and this is the height that works best for me. I think that the price is great for a hybrid mattress of this quality and the height makes it easy for me to get in and out of bed. ... show more
Reviewed in the United States on June 24, 2026 by Sky

Very comfortable and exactly as described....
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. ... show more
Reviewed in the United States on June 27, 2026 by RP

Hybrid
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. ... show more
Reviewed in the United States on July 10, 2026 by Kimberly Caudle
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