King Size Mattress - 12 Inch Hybrid King Size Mattress in a Box, Upgrade Strengthen, Gel Memory Foam King Matress with Motion Isolation, Strong Edge Support and Pocket Springs, Medium
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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 7 left in stock, order soon!
Arrives
Wednesday, Jun 25
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Style: 12 Inch Medium
Size: King
Features
- Breathable & ComfortableKing size mattress 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
Brand: SIMARTH
Size: King
Product Dimensions: 79.92"L x 75.98"W x 12"Th
Top Style: Pillow Top
Cover Material: Skin-friendly fabric
Number of Layers: 9
Fill Material: High density foam and individual pocketed springs
Weight Limit: 1000 Pounds
Special Feature: Breathable, Pressure Relief, Individual Pocketed Coil System
Color: Black, Dark Gray
Product Dimensions: 79.92 x 75.98 x 12 inches
Item Weight: 72.8 pounds
Manufacturer: AWT Store
Item model number: 5ecb53ad-af58-4da4-aa8d-863b12702f71
Date First Available: July 19, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 25
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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Learn more about financing & leasing here.
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Top Amazon Reviews
Style: 14 Inch
Size: Queen
This Mattress is Awesome! The firmness and support is amazing. Since I’ve purchased this mattress from Amazon I have slept comfortably. My back feels a lot better than before. It only takes a few minutes of your time to setup. I’ve only had this mattress for about two months now so I’m not sure how long it will last but I would recommend it to anyone who wants to purchase one for a reasonable price.
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Reviewed in the United States on April 16, 2025 by kdjimm
I don’t usually post reviews but this bed far exceeded my expectations. This has definitely been the most comfy bed I’ve ever had. Props!
Reviewed in the United States on May 11, 2025 by Amazon Customer
Style: 12 Inch Medium
Size: King
I was really unsure to order a mattress online but I really am glad that I did! It is so comfy, and just what I needed!
Reviewed in the United States on May 6, 2025 by Stormy
Style: 12 Inch Medium
Size: King
Arrived on time and in good condition! Nice mattress!
Reviewed in the United States on April 1, 2025 by Char Roberts
I purchased this mattress July of 2024 and my mattress has sunk. I’m a 4”11 female and my weight fluctuates between 168 and 173. My mattress sunk in and no it does not expand back up. I am reaching out to product support and will provide an update to see if this can be replaced. I have never owned a mattress that did this. Just a follow up I still have not been able to make contact with the company for this mattress for a replacement. It is very disappointing that you cannot even get with an Amazon rep anymore like you used to if there are issues with a product. I have not owned this mattress for even a year and to know it sunk in which is very unusual I have never had a mattress do that before.
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Reviewed in the United States on April 8, 2025 by Jessicajoy1224
very comfy and strong
Reviewed in the United States on May 10, 2025 by 245suzyq
The mattress inflated within a day but I had planned to not be home while it did for the weekend. The bed as a whole is very comfortable, soft but you don't sink into it; it has helped with my back pain. The only part I didn't like is the edges, they have no support, if I sit on the edge to put my shoes one it sinks all the way down.
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Reviewed in the United States on February 17, 2025 by SmallP10
I haven’t slept this good in years. I’ve purchased a bed in a box before but this one is leagues above my last. Sitting on the edge of the bed I was nervous because of how soft it was but once I laid down it was over. I fall asleep in seconds. And I’m not waking up tossing and turning anymore either. This mattress is well worth the price.
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Reviewed in the United States on February 14, 2025 by Shannon