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SIMARTH

Mattress Memory Foam Hybrid Mattress with Motion Isolation and Pressure Relief, Strong Edge Support, Pocket Spring King Size Mattresses in a Box (12 Inch Medium, King)

  • Based on 792 reviews
Condition: New
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$239.98 Why this price?
Holiday Deal · 14% off was $279.08

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon
Arrives Monday, Dec 22
Order within 49 minutes
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Size: King


Style: 12 inch


Features

  • Comfortable & BreathableKing size mattresses curated with high-end fabrics for a soft, silky touch. Exclusive knit fabric technology is both breathable and sweat-wicking and keeps you warm for the perfect sleep experience
  • Unparalleled Sleep EnjoymentMattress king size has a patented supportive technology that ensures every part of your body fits perfectly for unprecedented relaxation, effectively relieving fatigue and allowing you to have a better night's sleep
  • Perfect Scientific CombinationKing bed mattress is made of individually pocketed springs and multiple layers of premium memory foam, expertly layered in our high-quality memory foam and ultra-high-density base foam for ultimate support
  • King Mattress in a BoxUnlike the traditional 2 coils, we offer the Hybrid Mattress with the addition of 3 coils, which enhances the mattress's edge support and superior barrier against the effects of your partner's movement. Achieve a quiet and comfortable deep sleep

Description

Powerful Features of Hybrid Mattresses:High Density Support Foam: An additional layer of firm high density foam that offers enhanced support from head to toe for better spinal alignment.B.Pressure Relief Memory Foam: Temperature-sensitive memory foam that conforms to your body's curves, relieving pressure points and ensuring an optimal sleeping surface for a restful night.Super Stretch Fabric: A natural and breathable fabric that enhances comfort and airflow, providing a lift sensation and reducing motion transfer for a peaceful sleep.Fire-Resistant Foam: Treated with special fireproof substances to create a safe sleeping environment.High Density Base Foam: An extra layer of high density foam providing added support for the innerspring system, contributing to the mattress's overall durability.Individually Wrapped Coil System: Innovative high-tech coils individually encased to reduce motion disturbance and alleviate body pressure points, delivering the ultimate comfort and support.Details:Comfort Level: Medium FirmMattress Type: InnerspringProducts Most Featured: Pressure Relief, Breathable, Low Motion Transfer, Edge SupportDimensions:Full: 547512 Inch; Approx. 66 lbsQueen: 608012 Inch; Approx. 77 lbsKing: 768012 Inch; Approx. 96 lbs

Brand: SIMARTH


Size: King


Product Dimensions: 79"L x 60"W x 13"Th


Top Style: Pillow Top


Cover Material: Fabric Blend


Number of Layers: 6


Fill Material: High density foam and individual pocketed springs


Weight Limit: 1000 Pounds


Special Feature: Cordless


Color: White,grey


Product Dimensions: 79 x 60 x 13 inches


Item Weight: 51 pounds


Manufacturer: SIMARTH


Item model number: SIMARTH Mattress


Date First Available: December 30, 2024


Age Range Description: Suitable for all ages


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 22

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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Learn more about financing & leasing here.

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Top Amazon Reviews

    • I Finally Got a Good Night of Sleep
Review Image by Kellie Kellie
Review Image by Kellie Kellie
Review Image by Kellie Kellie
Review Image by Kellie Kellie
Review Image by Kellie Kellie
What is amazing to me is that this queen bed came in this little box! I have been suffering from hip pain and cramps in my glutes for quite awhile and decided it was time to get a new bed. I went to a couple of mattress stores and laid on a few beds and decided that medium firm is what I wanted. I am a cheap shopper and can't see spending $1000 on a mattress so I decided to look on Amazon. I looked for days and read reviews (I appreciate all of you reviewers because I am putting my trust in your hands when shopping). I had it down to 5 mattresses and chose Hybrid SIMARTH Queen Size Mattress 12 Inch mainly because of the reviews. It was scheduled to be here on Friday, but came a day early. The box was heavy but manageable. I drug it to my bed and put it on top of my boxspring and rolled it out. It was awkward but I was able to maneuver it around fine. It did not come with a plastic cutter, so I just used my scissors to cut away the plastic. I wish I would have taken a picture of the mattress in the plastic because I thought to myself there was no way that this was going to expand to a queen-sized mattress, but it did. I have to say I enjoyed watching it expand. It was pretty immediate, but wanted to give it at least 30 hours to fully expand. I do want to point out that I have heard people say that there is a smell when foam is compressed, but I didn't notice a smell at all. I didn't put my face in the mattress to test out the theory, but I didn't think I needed to since I didn't smell anything. Last night, I put my mattress pad and sheets on and I was actually a little anxious to go to bed. I was nervous that I would be tossing and turning all night because I know it takes awhile to get used to a new bed. After sleeping for over 7 hours (which is unheard of for me), I have to say that I think this bed is a winner! My hips don't hurt as much as they did yesterday and the cramps in my glutes are almost gone. The mattress isn't as soft as I thought it would be, but I have a feeling it will get a little softer as I sleep on it. It is firm, but no way as firm as the previous firm mattresses that I have had in the past, so that is a good thing, because they were too firm. I also read some reviews that stated the bed wasn't a true queen. This one fit perfectly on top of my queen boxspring. It looks good, and feels even better. All-in-all, I am extremely pleased with this purchase. I just got a good night's sleep for under $200. ... show more
Reviewed in the United States on March 9, 2025 by Kellie Kellie
    • Great Buy
So Easy, So Comfortable, True to size. Expands quickly, great quality. We were so please with our purchase of this bed in a bag. We actually purchased a few sizes one for our bedroom and one for our guestroom. Everyone that sleeps over says how comfortable this bed is and when we say it is a bed in a bag from Amazon they are shocked. We love this bed it is very comfortable and does not have us waking up with pain in our neck or our back. Would defiantly buy. ... show more
Reviewed in the United States on October 21, 2025 by Product Sucks
    • Mattress for a good night's sleep
Size: King Style: 14 Inch
Good and comfortable mattress, good sleep, I would prefer a harder mattress but my partner prefers softness. Worth the price
Reviewed in the United States on October 22, 2025 by Big A
    • Best Mattress We’ve Ever Owned!
This is a great mattress—good looking, comfortable and provides wonderful support. We have received compliments from several guests who slept on it for extended periods of time. It comes compacted, and was easy to carry upstairs and unpack. We allowed it to fully expand for 24 hours, but it had plumped up long before that. We were so happy with our purchase, that we bought another for our guest bedroom. ... show more
Reviewed in the United States on September 26, 2025 by W A.
    • Love at first night
This mattress sleeps well and is very comfortable. Firmness is somewhat subjective. I prefer firm and this is plenty firm for me. Not mushy at all. Fairly solid when placed on solid frame. A slight bounce to it but that is fine. I do not expect this to last 10 years at this price but will be more than happy with 5. Not our primary mattress so excellent choice for secondary use. I suspect it will be more than adequate for most people’s primary use also. ... show more
Reviewed in the United States on January 26, 2025 by Hawgmag
    • Good mattress. Would buy again
Great mattress. Comfy, softness and hardness. It’s perfect for my 3 year olds bed and for me as an adult sleeping on it.
Reviewed in the United States on September 25, 2025 by Amanda b.
    • Do not purchase
I had very high expectations from this mattress considering all these reviews. However this is going to be my honest experience. I let the mattress sit undisturbed for 3 days so it can fully take its shape. The middle of the bed feels nice and medium firm as stated by the manufacturer. Thats where the positive experience ends. The corner and edges of the bed did not fully "inflate". It's super soft and practically collapse on it self. The description says it's corners are strong which is a lie in my case. One side of my bed is higher than the other because it did not fully take its form. I rotated my mattress to see if the problem would resolve however it persisted. This is one of the items you really can't return because how are you supposed to put it back in the box once it's fully inflated. I would not recommend this product on the grounds that it's not true to its description and you will be out of your money with well bellow average product. ... show more
Reviewed in the United States on February 8, 2025 by Molla Mohammad
    • Mattress
Much better than expected. Well worth the money.
Reviewed in the United States on October 17, 2025 by Linda Holbrook

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