King Size Mattress 14 Inch King Hybrid Mattress in a Box, Individual Pocket Springs for Motion Isolation & Pressure Relief, Enhanced Edge Support, Fiberglass Free, Medium, 365 Night Trial
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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Dec 24 – Dec 25
Size: King
Style: 14 Inch
Features
- Supportive and Pressure Relief: The king innerspring mattress provides great contour support and conforms to your body's curves, aligning your spine and relieving fatigue well.
- Silent Sleep: The individual pocket springs of the 14 inch king mattress ensure that each zone operates separately, preventing disturbances caused by your and your partner's movement.
- Breathable & Airflow: The airflow among the individual pocket springs makes the king spring mattress more breathable than the full-foam mattress and the premium quilted mattress cover adds softness and breathability, providing lasting freshness for you.
- Safe and Healthy: The 14-inch mattress is certified by CertiPUR-US and Oeko-Tex Standard 100 and is anti-fire yet free of health risks from fiberglass. So the mattress will give you a hassle-free night's sleep.
- Worry-Free Sleep: The king mattresses come with a 10-year limited warranty to ensure your excellent purchase experience. If you have any issues with your mattress, please contact our customer support team and they will work with you to resolve the issue. Please note that our mattresses cannot be returned once opened.
Brand: SynthoSpace
Size: King
Product Dimensions: 80"L x 76"W x 14"Th
Top Style: Tight Top
Cover Material: Fabric (Material not specified)
Number of Layers: 2
Fill Material: Individual Pocket Springs, Foam
Special Feature: Motion Isolation, Pressure Relief, Breathable
Color: Blue
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 14 inches
Manufacturer: SynthoSpace
Item model number:
Date First Available: March 28, 2025
Age Range Description: Adult
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Dec 24 – Dec 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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Top Amazon Reviews
Size: Queen
Style: 12 Inch
The media could not be loaded. I picked this blue mattress for a quick setup after moving to my new house. After I ordered it, it was delivered the next day. Unboxing was very easy. Once I cut open the plastic, the mattress expanded on its own very quickly. This mattress feels medium-firm and supportive. It is very comfortable for me as it saved my lower back. I’m also surprised by the outer tender fabric texture. It’s soft and skin-friendly, much nicer than the plasticky polyester covers I’ve used before. It was also convenient to move it into place. Maybe there is one small head-up. Because it’s vacuum-packed and rolled, the box is dense and a bit heavy before you open it, especially for the queen size. This is common with compressed shipping. Overall, this is a durable mattress with outstanding value for the price. Highly recommended.
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Reviewed in the United States on August 21, 2025 by Zifeng Z. Zifeng Z.
Size: Queen
Style: 12 Inch
The queen mattress arrived quickly from FedEx, neatly compressed in a box. After unwrapping the protective film, it took a few minutes to fully expand into shape, and there was no smell. The surface feels soft to the touch, but when lying down it offers a firm, supportive feel that is especially comfortable for the back. I also like the elegant blue color, which gives it a clean and modern look. I used to sleep on softer mattresses, so this firmer feel is a new experience for me. Overall, the functionality, comfort, and quality make it well worth the money.
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Reviewed in the United States on September 21, 2025 by Jack Jack
Size: Queen
Style: 14 Inch
Review: I have been sleeping on this mattress for several weeks and the difference has been impressive. The quality of the materials is noticeable from day one: it is firm, but at the same time very comfortable, offering excellent support for the back. I wake up without pain and really feel like I'm resting better. The 14-inch height gives it a sleek and modern look, and the design is very nice, with high-quality finishes. In addition, it regulates the temperature very well, something important for those of us who usually spend heat when sleeping. I also want to emphasize that it arrived well packed and regained its shape quickly after opening it. It's worth every penny - it exceeded my expectations and I would definitely buy it back. I recommend 100 per cent
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Reviewed in the United States on November 12, 2025 by Raiman oquendo
Size: King
Style: 14 Inch
Would have given 5 stars but the tracking number I was given was issued but fedex had not picked it up! Eventually a new tracking number was sent and I received the mattress 10 days after ordering…ordered on Nov. 18 and received on the 28th. The mattress fully inflated in under 24 hours. Seems to be good quality and firm enough. Would purchase again. I had checked local furniture store and they wanted over $1,000 for their lower end mattress so I figured I could purchase 4 of these compared to 1 of theirs. Sleeping very comfortable now.
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Reviewed in the United States on December 1, 2025 by gagal_5538
Size: King
Style: 14 Inch
I’m so glad I chose the 14 Inch King Hybrid Mattress in a Box. From the moment it arrived, setup was quick and hassle-free—just unbox, unroll, and let it expand. The mattress has the perfect balance of comfort and support. The individual pocket springs really do their job with motion isolation—I hardly feel any movement when my partner shifts during the night. The medium firmness feels just right, offering pressure relief for my back and shoulders while still being supportive. I also appreciate the enhanced edge support, which makes the whole surface usable without that “slipping off” feeling. Another big plus is that it’s fiberglass-free, giving me peace of mind about safety and durability. Overall, this mattress feels luxurious, breathable, and incredibly comfortable. If you’re looking for a king-size bed that combines plush comfort with sturdy support, this hybrid mattress is an excellent choice. Highly recommend!
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Reviewed in the United States on October 2, 2025 by Johana
Size: King
Style: 10 Inch
The media could not be loaded. When I moved in to my new apartment, I was looking for a comfortable, affordable, and easy to move king size mattress since I would be on the third floor and planned to upgrade from my full size to a king. I set my price range and found that this mattress was highly recommended. It stood out from some of the other ones because of the pocket springs and memory foam combination. I was initially skeptical that it wouldn't meet my expectations and would be difficult to move up to my apartment. I had never had a mattress delivered before and didn't really know what to expect. I was able to easily move it from the first to the third floor with a little help. I would say this is a huge reason to consider the 10 inch size specifically. Next, I just rolled it out and cut the bag open. It expanded to full size really quickly, but I gave it the recommended 48 hours just to be sure. It had a little bit of a "new car smell" when it was expanding but it's long gone now. The mattress is really comfortable. I didn't know if the 10 inch thickness would be enough support for my partner and I, but it has held up great so far! Going from a traditional spring mattress to this one was such a huge improvement for my quality of sleep. The firmness is just right for me and I didn't have to buy any kind of padded mattress cover like I did with my overly firm old mattress. It's also not so soft that you sink into it which is something was wary of for memory foam mattresses when looking for a new mattress. For this price I would say this is definitely worth it! If you're looking to upgrade your mattress size and want something convenient and comfortable, I would highly recommend this product.
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Reviewed in the United States on August 30, 2025 by Jonas Jonas
Size: Queen
Style: 14 Inch
Feels Like Sleeping on a Cloud! So Comfortable and Easy to Set Up This is honestly one of the most comfortable mattresses I’ve ever slept on! Delivery was quick, and setting it up was super easy. When I first opened the box, I was a little worried because it didn’t look very thick, but as soon as I cut it open, it started expanding right away — and wow, it turned into a thick, plush mattress in no time. It feels like sleeping on a cloud — soft but supportive at the same time. I had no issues with any weird smells when opening it, which I really appreciated. It’s been top-notch quality so far, and I couldn’t be happier with this purchase.
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Reviewed in the United States on October 30, 2025 by Jean Jean