14 Inch King Hybrid Mattress in a Box - Medium Firm Memory Foam & Individually Pocket Springs for Pressure Relief,Motion Isolation,CertiPUR-US Certified,Fiberglass-Free,Enhanced Edge Support
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Size: King
Style: 14 inch
Features
- Comfortable & BreathableKing size mattresses 14 inch curated with high-end fabrics for a soft, silky touch. Exclusive knit fabric technology effectively promote sair circulation inside and outside the mattress, absorbs odors and moisture, creating a dry, hygienic and comfortable sleeping environment. This allows you to experience refreshing sleep and wake up feeling rejuvenated.
- Unparalleled Sleep Enjoyment14 inch hybrid king mattress 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. All foams in the SIMARTH mattress are CertiPUR-US certified, ensuring the absence of harmful substances. This provides a safe and healthy sleep environment for your family.
- Healthy Sleep Our medium firm mattres 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. The upper layer is a soft rebound layer, and the lower layer is a strong support layer, which can not only provide a comfortable fit, but also ensure that all parts of the body can be evenly supported, effectively maintain a natural posture during sleep.
- Perfect Scientific CombinationUnlike the traditional 2 coils, we offer the Hybrid Mattress with the addition of 3 coils, which enhances the mattress's edge support, adapting the support force in real time to body movements and pressure changes, ensuring optimal support and rebound. At the same time, the high resilience of the spring superior against the effects of your partner's movement. Achieve a quiet and comfortable deep sleep.
Brand: SIMARTH
Size: King
Product Dimensions: 80"L x 76"W x 13.78"Th
Item Weight: 60.6 Pounds
Item Firmness Description: Medium Firm
Top Style: Pillow Top
Cover Material: Polyester Blend
Number of Layers: 6
Fill Material: High density foam and individual pocketed springs
Weight Limit: 1000 Pounds
Product Dimensions: 79.9 x 60.2 x 13.78 inches
Item Weight: 60.6 pounds
Manufacturer: AWT Store
Item model number: SC14Q-2
Date First Available: July 22, 2025
Age Range Description: Suitable for all ages
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
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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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Top Amazon Reviews
Size: King
Style: 14 inch
What I like: The 14‑inch thickness gives a substantial “hotel‑bed” feel — you definitely notice the extra height and soft contour compared to my previous mattress. It strikes a comfortable balance: not so soft that you feel like you’ll sink uncomfortably, yet with enough plushness to relieve pressure when side‑sleeping or tossing and turning. Edge support is surprisingly good. Moving toward the edge of the bed doesn’t make me feel like I’ll roll off; the mattress stays stable. Motion isolation is decent. With a partner who moves around, I’ve found I’m less disturbed than on our older mattress. Setup was straightforward: the mattress arrived boxed, unpacked and expanded easily. For what it’s worth, the surface fabric and feel seem fine (no immediate weird smells or manufacturing oddities). What could be better / things to keep in mind: If you were coming from an ultra‑firm mattress, this might feel softer than expected, so if you need maximum back‑support (e.g., for serious lumbar issues) you might still want a slightly firmer model or add a firm mattress pad. Some flippancy in “14‑inch” models: thickness can be a marketing mark. While it feels thick, you do need to verify the base support and how the mattress holds up over time (I haven’t had it long enough for long‑term sagging to show). Heat retention: Because of the added padding layers (especially in medium‑to‑plush mattresses), there is a slight increase in surface heat compared to spring mattress. Break‑in period: Expect maybe a week or two of “get‑used‑to‑it” time. In my first few nights I felt like I was adjusting to a slightly different feel at heel/hip area.
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Reviewed in the United States on November 10, 2025 by Kelly
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.
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Reviewed in the United States on March 9, 2025 by Kellie Kellie
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.
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Reviewed in the United States on October 21, 2025 by Product Sucks
Very comfortable bed for the price. The edges are a little soft. I used it in guest bedroom, so its more than adequate. I would sleep on it every night.
Reviewed in the United States on December 18, 2025 by Amazon Customer
This is a very comfy mattress. Unfortunately, there is no side support. Still, a really decent mattress!
Reviewed in the United States on December 19, 2025 by Deb
Bought this for a spare bedroom. It is the most comfortable bed. Took it out of box and unwrapped and it immediately took shape.
Reviewed in the United States on December 29, 2025 by MichelleBui MichelleBui
Nice comfortable bed. It has some soft spots. Not bad for the price. Seems soft in spots and on the edges.
Reviewed in the United States on December 11, 2025 by Trust me, I know!!!
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.
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Reviewed in the United States on September 26, 2025 by W A.