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MOLBIUS

King Size Mattress | 12 Inch Hybrid Mattresses King in a Box | Medium Firm Memory Foam and Individual Pocket Springs | Fiberglass Free Bed Matress | Breathable | CertiPUR-US

    • Based on 1,177 reviews
Condition: New
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$329.99 Why this price?
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Mar 8
Order within 20 hours and 21 minutes
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Size: King


Style: 12 Inch


Features

  • PREMIUM KING MATTRESS IN A BOX: We have meticulously crafted our 76" W x 80" D x 12" H MOLBIUS king size mattress using cutting-edge technologies so you can experience the perfect night of sleep. Using only the finest materials, this fiberglass free mattress is a testament to our unwavering commitment to quality, offering a safe retreat for unparalleled rest. Every inch of the memory foam mattress embodies decades of craftsmanship, perfected to give you the best sleep experience.
  • SUPERIOR COMFORT: This mattress king size lets you dive into a realm of unmatched relaxation with a unique blend of individually wrapped pocket coils and premium memory foam. The king size memory foam mattress innovative combination not only provides superior pressure relief and support for every contour of your body but also promises enhanced breathability. The MOLBIUS king memory foam mattress is not just a bed in a box - it's a nightly invitation to indulge in world-class comfort.
  • SLEEP WELL AND WAKE UP RESTED: The MOLBIUS king mattress in a box will elevate your sleep journey to previously unattainable heights! Our medium firm mattress intricately layered hybrid design excels in temperature regulation and motion isolation, helping with tossing, turning, or disturbances from a restless partner. Every night on this king bed mattress becomes an opportunity for deep, uninterrupted sleep, ensuring you wake up rejuvenated and ready to seize the day.
  • EASY TO USE AND SETUP: Versatility meets convenience in our mattress king size bed! The MOLBIUS bed mattress is engineered to be a perfect fit for most common bed frames - from traditional box springs to modern platforms, bunk beds, and even floors. The setup is straightforward: unroll, unwrap, and watch the hybrid mattress king size come to life. Please allow 48-72 hours for the full expansion of the hybrid mattress. And, a friendly reminder: be cautious during king mattresses rapid unfurling.
  • COMMITMENT TO QUALITY: At MOLBIUS, we're more than a brand - we're a symbol of enduring trust. Our memory foam mattress king size is built with CertiPUR-US and Oeko-Tex standard 100 certifications. Each king size bed mattress is manufactured under strict QC guidelines and inspected before being shipped to you. We offer an extended 100-night trial and reassuring 10-year support. If you have questions or feedback about the bed in a box king size, our dedicated team is always eager to assist.

Brand: MOLBIUS


Size: King


Product Dimensions: 80"L x 76"W x 12"Th


Top Style: Euro Top


Cover Material: Polyester Blend


Number of Layers: 2


Fill Material: Memory Foam and Spring in a Box


Special Feature: Breathable and Comfort


Color: White


Coil Type: Pocketed Coil


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 79 pounds


Department: unisex-adult


Manufacturer: MOLBIUS


Country of Origin: Taiwan


Item model number: King size mattress 12 inch in a box


Date First Available: October 16, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Mar 8

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.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • 🌟 **Incredible Comfort & Support – Best Sleep Ever!** 🌟
Size: Queen Style: 12 Inch
I was a little skeptical about buying a mattress online, but the **MOLBIUS 12-Inch Queen Hybrid Mattress** completely won me over! It offers the perfect **balance of comfort and support**, and I’ve been sleeping better than ever. ✅ **Perfect Medium-Firm Feel** – Just the right balance between soft and firm. The **memory foam contours beautifully** while the **pocket springs provide excellent support**—no sinking, just pure comfort! ✅ **No Motion Transfer** – My partner moves a lot in their sleep, but thanks to the **individually wrapped coils**, I don’t feel a thing. No more waking up in the middle of the night! ✅ **Breathable & Cool** – Unlike some memory foam mattresses that trap heat, this one stays **cool and breathable**, thanks to the hybrid design. No more overheating! ✅ **Fiberglass-Free & CertiPUR-US Certified** – I love that this mattress is **safe and free from harmful chemicals**. Peace of mind for a healthier sleep environment. ✅ **Convenient Delivery & Easy Setup** – It arrived **vacuum-sealed in a box**, and I was able to set it up **in minutes**. It fully expanded in about 24 hours with no weird odors. If you're looking for an **affordable, high-quality hybrid mattress** with **amazing comfort and support**, the **MOLBIUS Queen Mattress** is a fantastic choice! I wake up feeling **refreshed, pain-free, and well-rested** every morning. **Highly recommend!** ... show more
Reviewed in the United States on February 2, 2025 by The Bhim Family
    • Great Mattress!
Size: Full Style: 12 Inch
I am thrilled with the quality of mattress and how comfortable it is! High quality at very reasonable price. Would definitely recommend to family and friends!! Sleep quality is phenominal.
Reviewed in the United States on February 19, 2025 by Tammy Reed
    • Sooooo comfy
Size: Full Style: 10 Inch
So, keep in mind as you read: I’m a low-income person who regularly sleeps on the ground for work and thinks an embassy suites and cheesecake factory is the height of luxury. I bought this mattress in early August and woooooowowowowow it’s so comfortable and it’s held up so well. I used to get bad back pain from my mattress, or I would have to rotate my mattress often because I would wear craters into it. Never with this mattress. No pain, no wear, no noise, no problems. It’s supportive without being too firm, comforting and soft without swallowing you. The thickness is perfect, it just all around works great. It came in a big huge heavy box, I was able to pull the mattress out with some difficulty (but nothing crazy), and set it up super easy on my frame. I let it rise for a day and some change just to make sure it could expand, and it was great from the get go. I’ve never ordered an online mattress so I wasn’t sure if it would work out without trying. It’s perfect, 10/10, would buy this again and again and again. I’m very impressed ... show more
Reviewed in the United States on February 21, 2025 by Frankie
    • Soft mattress. Impressive for a roll up!
Size: Queen Style: 12 Inch
I'm actually really impressed with this. It's squishy on top but seems to be firm enough underneath to hold up to not having a box spring. Depending on how long it lasts before wearing out, I'd buy again.
Reviewed in the United States on February 1, 2025 by Heather
    • Awesome mattress
Size: Queen Style: 10 Inch Medium
I just switched from a memory foam mattress bc my back hurt literally every night, I have lower back injuries... I got this one and the very first night sleeping on it was amazing. My back didn't force me out the bed early not one time and I'm on day 3. Definitely worth the money... It's soft, thick, And the mattress has a little bounce if that helps any of you 😉 ... show more
Reviewed in the United States on February 1, 2025 by Britt
    • Buy this without hesitation.. comfortable
Size: Queen Style: 12 Inch
Queen, 12" -I bought this for our guest room... Perfect height and comfort. Expanded after opening to ordered height and springs just add the right amount of support. I would buy again!!
Reviewed in the United States on February 22, 2025 by SuninFL
    • It works
Size: Queen Style: 10 Inch Medium
You get what you pay for. The box was heavy, but it unpacked easy enough. I let it air and rise for about 3 days. I didn’t notice any smell. I will say it’s more soft than semi-firm. Not cloud soft, but a reasonable amount of give. I tend to like softer beds and it works for me. It doesn’t provide support on the edges so if you are looking to sit on the edge of the bed or sleep near the edge, it will roll you right off. But for the price, it gives a decent night sleep. For me it’s a temporary need for a couple months, so it would also work fine for a guest room. If you are looking for a good, every night, multi-year mattress, I would recommend spending a bit more, but if its for occasional use, this works fine. ... show more
Reviewed in the United States on November 25, 2024 by tm
    • Comfortable cloud like
Size: King Style: 12 Inch
I was a little suspicious of getting a rolled up, shrink wrapped mattress, especially one I couldn't feel the firmness for myself before buying. BUT I was and still am, AMAZED by the comfort of this mattress. I am on the curvier side so memory foam mattresses generally are only comfortable for a couple nights then they get to be too soft for my taste. But this one is still comfortable a month later, and I've managed to sleep through the whole night (even for almost 24 hours straight) and upon awakening felt NOTHING except well rested, no pains, no aches, no rice crispy back (you know the snap, crackle, pop that comes from having a bit too much fun in your 20s, and no longer being in your 20s or even 30s anymore). My fiancee LOVES it, he calls it his cloud. And all three of my cats have claimed their spots on it as well. My dog, well he just barks at it (he isn't allowed to get on the bed, so he just yells at the cats for being able to)!!! We absolutely love this bed, my only wish is that it had more sturdy edge support, if I sit on the edge of the bed, there isn't as much edge support or extra firmness as I would e hoped for. ... show more
Reviewed in the United States on December 14, 2024 by Laura

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