Firm King Mattress 14 Inch, Cooling Gel Hybrid Mattresses for Back Pain Relief Extra Lumbar Support Motion Isolation with 960+ Pocket Springs, Fiberglass-Free 365 Night Trial
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90-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 2 left in stock, order soon!
Arrives
May 28 – May 29
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Style: 14'' Ultra
Size: King
Features
- Extra Shoulder & Lumbar Support: Designed with a specialized zoned construction, this king mattress provides targeted relief for the shoulders and lower back, helping to alleviate tension where it's needed most. An excellent choice for those who experience discomfort in these pressure-prone areas.
- Enhanced Breathability for Cooler Sleep: Designed with a breathable open-coil structure, this king size mattress offers up to 10 times more airflow compared to traditional all-foam mattresses. Paired with cooling gel memory foam, it effectively regulates body temperature, ensuring a fresh and comfortable sleep throughout the night.
- Premium Motion Isolation for Undisturbed Sleep: Constructed with 960+ individually wrapped 2.0mm reinforced steel coils, this hybrid mattress king minimizes motion transfer by absorbing movement at the source. Ideal for couples, it helps ensure a quiet, uninterrupted nights restno more being disturbed by your partners tossing and turning.
- Certified Safe & Fiberglass-Free Materials: This 14-inch king hybrid mattress is crafted from premium materials that meet CertiPUR-US, OEKO-TEX, and CFR1633 safety standards. Free from fiberglass and harmful chemicals, it offers a cleaner, healthier sleep environment for you and your family.
- About UniPon Brand Service: At UniPon, your comfort and trust are our top priorities. Backed by over 40 years of expertise, we proudly offer a lifetime support service and a 365-night trial on every mattress-in-a-box purchase because your peace of mind matters just as much as your sleep quality.
Brand: UniPon
Product Dimensions: 80"L x 76"W x 14"Th
Cover Material: Cotton Blend
Number of Layers: 2
Special Feature: Extra Lumbar & Hip Support, Motion-Isolation, Pain Relief
Coil Type: Pocketed Coil
Model Name: P2403568
Construction Type: Gel Foam, Spring System
Comfort Layer Material: Memory foam
Number of Mattress Coils: 960
Product Dimensions: 80 x 76 x 14 inches
Item model number: P2403568
Date First Available: November 12, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
May 28 – May 29
Yes, absolutely! You may return this product for a full refund within 90 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
I really like this mattress, it's just what I wanted. It is very firm, which I like, but very comfortable. It arived ahead of schedule and was very easy to set up. It is VERY heavy rolled up. Unwrapping was a breeze, except that at the factory it's folded over, then rolled. So when you release it, it unrolls, then unfolds UPSIDE DOWN. I don't think there's any way to avoid this when you unwrap it, so be prepared to flip it over on the bed. There is no smell to it, by the way. Overall, week one has been great. I'm very happy with it.
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Reviewed in the United States on October 29, 2025 by Ken
My husband wanted a firm mattress. We'll, this mattress made him very happy. Inexpensive but super durable. Very nice quality i am shocked that it wad not more expensive It is packaged bottom side in so when it flew open, ( and yes, it did fly open) it needed to be flipped. I have low ceiling and a ceiling fan above my bed, I almost broke the fan when opening. Be careful
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Reviewed in the United States on October 24, 2025 by Misty Stonex
I can't believe this thing came out of a box. It looks great but beware unboxing it. We must have punctured the plastic and it opened up like a life raft knocking both my wife and I to the ground but we could do is lay there and laugh. We slept on it last night for the first time very very firm now that's okay that's what we wanted how long it will stay that way we'll see. Looks to be made very well right up there with the brand name mattresses but in a quarter of the price.
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Reviewed in the United States on October 13, 2025 by John Boyer John Boyer
Mattress was what was advertised . But slippery on metal frame bought separately.
Reviewed in the United States on October 22, 2025 by Ron R.
Very reasonable price! Sleeps better than those costing 4 times as much. We really enjoy this mattress!
Reviewed in the United States on October 29, 2025 by PhD HILL
This mattress is fantastic! I was initially unsure about the firmness, but it turned out just as expected—nice and firm. It's made from durable materials, so it seems like it will last a long time. It arrived tightly rolled and is somewhat heavy, but it was super easy to set up and fits our king-size bedframe perfectly. I genuinely sleep so much better on this mattress!
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Reviewed in the United States on November 11, 2025 by Cgirl
It’s a nice looking mattress for the money. After letting it decompress for 24 hours the middle of the bed became warped. Sitting on the edges is not firm and you will sink right in. The size is good as we bought a king. It took a little over 24 hours to fully expand but it’s still not firm. The heat doesn’t seem to stay in though I can’t say for sure since we keep our room tropical year round. If I could return it I would but I can’t fold it back into the box. I’m unhappy with this product and will never buy from this brand again.
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Reviewed in the United States on October 22, 2025 by Trusted sources
Went from a Purple medium mattress to this. Never buying an expensive mattress again. Cured most of my back pain sleeping on a firm again. Great comfortable top, I don't feel the springs.
Reviewed in the United States on October 27, 2025 by Brittanyn norton