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
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30-day refund/replacement
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.
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Availability:
Only 10 left in stock, order soon!
Arrives
Tuesday, Jun 17
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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:
Tuesday, Jun 17
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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Similar Products
Top Amazon Reviews
Size: Full
Style: 12 Inch Medium
I bought the 12-inch full sized mattress and it was an awesome experience. I was a little nervous due to reviews about the mattress not expanding to its advertised size but no worries, it met expectations. I removed it from the box upon arrival and rolled it from the plastic covering. I then immediately slit the plastic cover and right away I heard the mattress expanding. I placed the mattress on the carpet, and it continued to expand. It expanded to its full size within a few hours. My daughter is very picky when it comes to mattresses, and she loved the mattress after sleeping on it for one night. I am thinking about replacing my expensive king-sized mattress with this mattress!!! BUY IT!!
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Reviewed in the United States on June 1, 2025 by Nicole
Size: Full
Style: 10 Inch Medium
We recently got this mattress for my son, and he absolutely loves it! It arrived neatly packed in a box (a bit heavy), and as soon as we cut open the vacuum wrap, it expanded almost instantly—within seconds. After about 10 minutes, it already looked fully expanded, but we still let it sit for 24 hours as recommended. The mattress is a great medium firm—perfectly balanced between soft and supportive. Not too soft, not too hard. It provides good comfort and support for a growing teen. Overall, very satisfied with the quality and the convenience of the setup. Highly recommend for anyone looking for a reliable and comfortable mattress!
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Reviewed in the United States on June 8, 2025 by Evelyn Wang
Size: King
Style: 12 Inch
Arrived very quickly, very heavy single box- but they included the tool that made cutting open the wrap easy. Do not skip the tool it will keep you from destroying your mattress and sanity! I purchased 2 queens and they were good which is why i went back for the long! This is a very soft mattress-as in when sitting on the edge of the mattress it provides little support. That said we don't buy mattresses for sitting and it sleeps great as long as you don't need a firm mattress. It's a fantastic value for the price though after buying I decided to add a box spring because of the type of bed I have. However it doesn't need it!
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Reviewed in the United States on May 24, 2025 by Malina
Size: Queen
Style: 10 Inch Medium
Enjoying the mattress so far! Especially just getting it out the box and just letting it take form! Not that heavy either! Going from an air mattress to this felt amazing! Sleep that night was great!
Reviewed in the United States on June 9, 2025 by Izabelle Kane
Size: Full
Style: 10 Inch Medium
I was honestly surprised by how great this mattress is for the price! It arrived quickly, was easy to set up, and expanded perfectly. Super comfortable — not too soft, not too firm. I’ve been sleeping so much better since switching. Highly recommend for anyone looking for quality and reasonable price.
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Reviewed in the United States on June 5, 2025 by Mark
Size: Queen
Style: 12 Inch Medium
I took a chance with this mattress and I DO NOT REGRET IT ! I have no pain and neither does my husband. Very pleasantly surprised. 200$ for this quality is amazing ! Also when I get out of bed he doesn’t even notice !
Reviewed in the United States on June 7, 2025 by Sarah Sarah
Size: King
Style: 12 Inch
This is a big, soft bed. I haven't slept so good in years. Only downside is, I wasn't expecting it to be so heavy. Well worth the buy. Also it says it takes 24 hours to fully inflate but it took mine about 2.
Reviewed in the United States on June 6, 2025 by Patrick C.
Size: Full
Style: 12 Inch Medium
Cut the plastic off and it popped open and started to expand. We allowed it to expand in the living room for over 24 hours. I bought it for my nephew and he said it’s super comfortable.
Reviewed in the United States on June 8, 2025 by Jordansmuse Jordansmuse