King Size Mattress,14 Inch King Mattress in a Box,Superior Hybrid with Gel Memory Foam or Back & Lumbar Support,100 Night Trial,Maximum Support,Pressure Relief,Zoned Support Spring, Firm
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Size: King
Style: 14 Inch Firm
Features
- SLEEP YOUR WAY. SIDE, BACK, OR STOMACH:KOULABRZ 14 inch King Size Hybrid Mattress adjusts to you. The soft, pressure-relief plush top(low-resistance foam and gel memory foam) layer cradles every contour. The dynamic wrapped pocket coils improve spinal alignment
- SUPPORT WHERE YOU NEED IT MOST(ZONE SUPPORT):Enhanced coils and extra lumbar foam work together to prevent sinking in the hip and lower back areas, promote better spinal alignment, and provide added pressure relief. Experience reduced back pain every night.
- STAY COOL, SLEEP NATURALLY:The 14 inch King mattress is comfortable, breathable, and natural. It effectively wicks away steam and sweat from the contact surface, keeping your body comfortable and dry throughout the night. The king mattresses independent pocket spring system enhances air circulation, preventing trapped heat for a cool and comfortable sleep.
- MOTION ISOLATION, SLEEP UNDISTURBED:Responsive coils enhance support and isolate movementperfect for couples and pet lovers. With reinforced edges, you can enjoy every inch of your mattress without the fear of rolling off.
- CertiPUR-US WORRY-FREE WARRANTY:All memory foam is CertiPUR-US certified and tested, and we offer a 10-year warranty. We recommend allowing your new mattress to fully expand within 72 hours. Keep a safe distance when unboxing, as the king mattress may expand rapidly and pose a risk. For any assistance or issues, please contact our customer support team.
Brand: KOULABR Z
Size: King
Product Dimensions: 80"L x 76"W x 14"Th
Top Style: Pillow Top
Cover Material: Polycotton
Number of Layers: 6
Fill Material: Gel Memory Foam, High Density Foam, Memory Foam
Special Feature: Back Pain Relief, Edge support enhancement, Maximum Support, Promote spinal alignment, Zone Support
Color: Coolling White
Coil Type: Pocketed Coil
Product Dimensions: 80 x 76 x 14 inches
Item Weight: 116 pounds
Manufacturer: KZF
Item model number: CD01
Date First Available: October 20, 2024
Age Range Description: Adult
Frequently asked questions
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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
This mattress is an excellent option for those looking for comfort and a good night's sleep. It is made with refreshing gel memory foam that maintains a pleasant temperature throughout the night and adapts well to the body. It is medium firm, perfect for me, neither too soft nor too hard. After a few nights, I noticed an improvement in the quality of my sleep. My back hurts less compared to my old spring mattress. The mattress expanded quickly after unpacking it, and it's definitely worth the price.
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Reviewed in the United States on August 5, 2025 by Itza Zelaya Itza Zelaya
Size: Full（NEW）
Style: 12 inch
I've been using this full-size hybrid mattress for a couple of weeks now, and honestly, it has exceeded my expectations. The combination of memory foam and innersprings offers the ideal balance of softness and firmness. It contours well to the body without sinking in too much. I was surprised by how easy it was to unpack: it comes vacuum-rolled, inflates in a matter of hours, and didn't have a strong odor like other new mattresses. From the first night, I noticed the difference: I no longer wake up with back pain and I barely notice my partner's movements. Plus, it stays cool all night, which I really appreciate since I tend to sleep hot. I definitely recommend it if you're looking for a quality, comfortable, and reasonably priced option. It's worth every penny!
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Reviewed in the United States on June 22, 2025 by Viviana Verde
Size: Queen (NEW)
Style: 12 Inch
I bought this KOULABR Z queen mattress for my mother, and it’s been one of the best purchases I’ve made for her comfort. She has osteoarthritis and often struggled with joint pain at night, but since sleeping on this mattress, she’s been waking up with less stiffness and discomfort. I’ve noticed she’s sleeping through the night more often, and she even mentioned she feels more rested in the mornings. It was also incredibly easy to set up — just open the box, cut the plastic, and let it open up. Within minutes it was ready to use, and there was no strong chemical smell. The mattress has the perfect balance of softness and support, feeling plush without sinking too much. It’s truly been a game changer for her sleep and overall comfort. Highly recommend for anyone looking for both quality and relief from aches and pains!
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Reviewed in the United States on August 12, 2025 by Kyle Robinson
Size: King
Style: 14 Inch Firm
It’s a very comfortable mattress. I got the 14” should have gone with 12” great value for the money!
Reviewed in the United States on June 6, 2025 by Zach Zach
Size: King
Style: 14 Inch Firm
I can't even believe how comfortable this mattress is! I was so worried ordering a mattress online that comes vacuum sealed in a box but so so glad I took the chance. This King size mattress is medium firm and sleeps like a dream!! The quality is superb, nice thick materials. I'm 40 and after having four children I suffer from chronic hip pain especially when sleeping. Haven't had any pain at all at night since sleeping on this mattress for 2 weeks. It was easy to set up, just cut the seal and it inflated to about 95% immediately. We did wait 72 hours just to be sure. During those 72 hours we also pulled up at the corners because some reviews said the corners didn't inflate properly. We did not have this issue, possibly because we took the time to stretch them out. Also there's almost no motion transfer at all. We can both get up without waking each other. It's a true king size as well. The top is just so nice, thick and soft, no need for a mattress pad or thick topper. Id say we are average size people and it supports our weight nicely. Doesn't sag or sink in when sleeping. Our kids have jumped all over it with no issues. Overall an outstanding purchase and I would recommend all day long!
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Reviewed in the United States on August 4, 2025 by ABENTON
Size: Queen (NEW)
Style: 12 Inch
I’ve been sleeping on this soft-firm mattress for a little while now, and I have to say it strikes a really nice balance between comfort and support. The top has a plush, cushioned feel that makes it easy to relax into, but underneath there’s enough firmness to keep my back and hips aligned. I wake up without the soreness I used to have from mattresses that were either too hard or too soft. It’s also great for combination sleepers—whether I’m on my side, back, or stomach, it adjusts without feeling like I’m sinking too far in. The edge support could be a little stronger, but overall, it feels durable and well-made. If you’re someone who doesn’t like a rock-hard mattress but also doesn’t want to feel like you’re sinking into a cloud, this “soft-firm” balance is a great middle ground.
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Reviewed in the United States on September 5, 2025 by Sandra L.
The media could not be loaded. This mattress is a great choice for anyone looking for comfort and a good night's sleep. It’s made with cooling gel memory foam that keeps the temperature pleasant throughout the night and conforms well to the body. It’s medium-firm – perfect for me, not too soft and not too hard. After just a few nights, I noticed an improvement in my sleep quality. My back hurts less compared to my old spring mattress. The mattress expanded quickly after unpacking, and it’s definitely worth the price.
...
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Reviewed in the United States on July 23, 2025 by Edyta Klag Edyta Klag
Size: Twin
Style: 10 Inch
Super comfortable and supportive mattress! It balances softness with firmness, keeps me cool at night, and has great motion isolation. Setup was easy, and it feels very durable. I wake up with less stiffness and much better sleep—highly recommend!
Reviewed in the United States on September 7, 2025 by Momena urooj