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King Size Mattress,12 Inch King Mattress in a Box, Medium Firm Hybrid Mattress with Pocketed Springs, Breathable Convoluted Foam, Pressure Relief and Support, Antistatic

  • Based on 136 reviews
Condition: New
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$219.99 Why this price?
Holiday Deal · 29% off was $309.99

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Availability: Only 3 left in stock, order soon!
Fulfilled by YushangWujie

Arrives Dec 25 – Dec 30
Order within 23 hours and 24 minutes
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Size: King


Style: 12 inch


Features

  • Comfortable and Safe: Experience comfort and protection with the soft, anti-static knit fabric on top of this hybrid mattress, which helps reduce dryness and irritation caused by static buildup. Free of fiberglass and made from CertiPUR-US certified foam, this mattress guarantees both safety and quality for restful sleep.
  • Breathable Convoluted Foam: Designed with a breathable wave-pattern cotton structure, this mattress enhances airflow and dissipates moisture and heat, helping you stay cool and dry throughout the year. The unique wave structure also contours your body, providing customized pressure relief and ultimate sleep comfort.
  • Motion Isolation: This 12" hybrid mattress features upgraded 1.9mm pocket springs that minimize motion transfer for improved weight distribution and pressure relief. Upgraded motion-isolating springs help prevent sleep disturbances, allowing you and your partner to enjoy a restful night.
  • King Mattress in a Box: Delivered in a compact box, the 12-inch mattress is compressed for easy transport and setup. One person can effortlessly carry it to the desired room, and once unboxed, it will expand rapidly.
  • Worry-Free Buying: Your purchase is risk-free with SweDrea's 100-night sleep trial and 10-year warranty. We are committed to ensuring your satisfaction, and if your mattress arrives with any defects or damage, our responsive customer support team is here to assist you.

Brand: SweDrea


Size: King


Product Dimensions: 79.92"L x 78.98"W x 12"Th


Top Style: Euro Top


Cover Material: Polyester Blend


Number of Layers: 2


Fill Material: Convoluted Foam and Individual Pocketed Spring


Special Feature: Hybrid


Color: Grey


Coil Type: Pocketed Coil


Product Dimensions: 79.92 x 78.98 x 12 inches


Manufacturer: SweDrea


Item model number: SD-MH11-12K-A


Date First Available: October 18, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Dec 25 – Dec 30

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.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great mattress
Great mattress for the price! I was hesitant about a mattress in a box. But was pleasantly surprised! It’s vary comfortable and I wouldn’t hesitate to buy another one!
Reviewed in the United States on June 13, 2025 by Antlers

  • Taking it out
Size: King Style: 12 inch
It’s sealed really tight! However I was able to bring it in my house, take it out the box, unwrap it and put it on the bed myself. I think the easiest way to do it is start from the beginning (like how you would do a fruit roll up lol) you can use scissors or a knife (I used a knife) to cut that first layer of plastic. Cut it in all 3 the places where you see the tape at . Next, do as you would when start to unroll a fruit roll up. Eventually, the first layer of plastic will come off. You will hear a sounds like air is going out but that’s a good thing! It’s releasing all the air from the mattress. Once I got the first layer of plastic off..I put the mattress on the bed Then I cut the last layer off (it’s much easier that way) because the mattress will start to come up. It’s not hard at all and it takes about 10/15 mins. So far it feels good. ... show more
Reviewed in the United States on November 2, 2024 by phone headphones phone headphones

  • I like this bed
Feels good, firm enough to not sink in much but not too firm that it feels like you’re sleeping on the ground. Correct size, correct 10” height. Setup was very easy. Not a ton of edge stiffness so I wouldn’t recommend sitting on the edge of the bed, but laying on it feels great enough for me to give 5 stars ... show more
Reviewed in the United States on November 10, 2024 by Adam

  • Head and foot
The only problem I have with this mattress is at the head and the foot of the mattress curve down. Other than that it's a great mattress.
Reviewed in the United States on February 17, 2025 by Sandy

  • VERY Comfortable
Size: Full Style: 10 inch
I had a really crappy old mattress and got this one when I got it I like how easy it was to unpack. When I sleep I don't have back pain in the morning and my hip pain goes away. I also got a smoking deal on it so it was real cheap but totally worth it. It has the perfect balance of firmness to softness it would be what baby bear had in his bed in goldilocks and the three bears. ... show more
Reviewed in the United States on December 12, 2024 by James R.

  • not great!
first thing you'll notice is the colors aren't the same as the image, they're more of a faded version! second thing is..when looking at the image where they show you what it consists of is a scam, it's actually giant springs with a 2in layer of foam over them! when you press down you feel every spring that each finger touches! not comfortable at all! the worst part is... your not going to get this thing back in the box to return it after waiting a week and a half for it to arrive! and it was a birthday gift so it was a huge let down all and all! ... show more
Reviewed in the United States on November 8, 2024 by Legend Campbell

  • Sets up easily and very comfortable!
This mattress was comfy, supportive the very 1st night! I've always been partial to a firmer mattress , but this mattress gives a different feel. For the price, I was really pleasantly surprised at how high-quality it was. Excellent support and for a few days now,Sleeping better!
Reviewed in the United States on November 28, 2024 by Vicky Chen

  • Not what is we expected
The bed has springs and is very uncomfortable
Reviewed in the United States on December 8, 2024 by Thea Arcos

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