12 Inch King Size Mattress, Hybrid Zoned Support Pocket Coils & Cooling Memory Foam, Medium-Firm Feel with Strong Edge Support, Pressure Relief, CertiPUR-US Certified
Condition: New
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90-day returns
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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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Monday, Jan 12
Size: King
Style: 12 Inch
Features
- 365-NIGHT HOME TRIAL Not sure if its the right fit? Take your time. With our industry-leading 365-night home trial, you can sleep on it for a full year completely risk-free. Questions or concerns? Our friendly customer support team is always here to help.
- SLEEP YOUR WAY SIDE, BACK, OR STOMACH:OFFTR Z 12 Inch King Size Hybrid Mattress adapts to your sleeping style. The plush comfort layer, combining low-resistance foam and gel memory foam, gently cradles your bodys curves. Beneath, responsive pocket coils provide dynamic support, keeping your spine aligned all night.
- TARGETED SUPPORT WHERE IT MATTERS (ZONE SUPPORT) The Superior Zoned Support System, featuring 8.5 high-compression pocketed coils and reinforced lumbar foam ensure extra support for your lower back and hips. This reduces sinkage, promotes healthy spinal alignment, and helps alleviate back pain so you wake up refreshed and ready to take on the day.
- SOFT YET SUPPORTIVETHE PERFECT FEEL SLEEPERS LOVE:It all starts with the OFFTRZ High-Compression Spring Systemshorter coils for stronger support and a thicker, more contouring comfort layer. The 8.5 high-compression pocketed coils reinforce the edges and isolate movement, ensuring balanced comfort in this hybrid mattress.
- MINIMIZED MOTION, MAXIMIZED SPACE:Say goodbye to sleep disruptions. Responsive coils isolate motion so you and your partner (or pet!) stay undisturbed. Reinforced edges prevent sagging and expand your usable sleep surface stable, quiet, and durable.
- CertiPUR-US Certified:All foams in this firm mattress are CertiPUR-US certified, ensuring durability and safety. We offer a 10-year worry-free warranty. Allow 72 hours for full expansion after unboxing. Unbox with caution as the mattress may expand rapidly. For any assistance, please contact our customer support team.
Brand: OFFTR z
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 72.3 Pounds
Item Firmness Description: Medium Firm
Top Style: Euro Top
Cover Material: Plush
Number of Layers: 5
Fill Material: Gel Memory Foam, High Density Foam
Weight Limit: 600 Pounds
Product Dimensions: 80 x 76 x 12 inches
Item Weight: 72.3 pounds
Manufacturer: OFFTRZ
Item model number: OFB1
Date First Available: December 26, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jan 12
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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- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Size: Queen (U.S. Standard)
Style: 12 Inch
One of the first things I noticed about this mattress is the comfort and overall feel. It strikes a really good balance—not too soft and not too firm—which works well for my sleeping preferences. The support is excellent and helps keep my spine properly aligned, so I wake up without the back pain I used to have. I also appreciate the pressure relief, especially around my shoulders and hips, as the mattress contours nicely to my body. Another big plus is temperature regulation; it doesn’t trap heat, so I stay cool and comfortable throughout the night. Since I share the bed, motion isolation is important, and this mattress does a great job minimizing movement when my partner turns. The edge support is solid too, making it easy to sit or sleep near the edge without feeling like I’ll roll off. Overall, considering the comfort, support, and quality, this mattress offers great value for the price and feels like a worthwhile investment.
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Reviewed in the United States on December 27, 2025 by dwayne johnson
Size: Queen (U.S. Standard)
Style: 12 Inch
It’s a very good quality mattress. It is comfortable, soft, yet strong and firm at the same time. The materials feel durable and well made. Once you open it, the mattress expands quickly. It provides great support and helps improve sleep quality. Overall, I’m very happy with my purchase and would definitely recommend it.
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Reviewed in the United States on January 5, 2026 by Natalie Natalie
I purchased this twin mattress and it has exceeded my expectations. The comfort level is perfect—not too soft and not too firm. It provides great support for the back and helps me sleep through the night without tossing and turning. The quality feels durable, and the stitching and materials are well-made. It arrived neatly packaged and expanded quickly once opened. I also appreciate that it doesn’t have any strong odors like some mattresses do. This mattress is ideal for a guest room, kids, or even daily use. Overall, it delivers restful sleep and excellent value for the price
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Reviewed in the United States on September 1, 2025 by Iraís
Size: Queen (U.S. Standard)
Style: 12 Inch
It’s softer than it was described. Definitely not medium firm but somehow it’s very comfortable and supportive. My main concern is always support. I have back problems and so I need support and I actually got some great rest on it. I bought it for my room in my mom’s house so I won’t sleep on it that often but I will update after a few months when I’m back. It’s very plush and bouncy but again oddly supportive. Good value for price.
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Reviewed in the United States on December 28, 2025 by lory
Size: Queen
Style: 12 Inch
Comfortable, no smell
Reviewed in the United States on October 26, 2025 by Angel Malpass
Size: Queen (U.S. Standard)
Style: 12 Inch
This mattress is fantastic! It came in compact packaging. It had to lie for 72 hours to fully recover. This mattress offers the perfect balance between firmness and comfort. It provides strong, reliable support for the body while remaining pleasantly soft on the surface. It felt like I found myself in a five-star hotel bed. I'm incredibly happy with my purchase.
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Reviewed in the United States on December 24, 2025 by Eugenia Eugenia
Size: Queen (U.S. Standard)
Style: 12 Inch
Did somebody say comfy sleep at nice? Yes am so happy I buy my mattress on here it is so comfy the quality is top tier I mean literally it’s so firm good all positions ifykyk.. this mattress support plus size weight really good I love.. when i sleep on this mattress I do want to wake up lol anyway yall can purchase one of these it has very good sleeping quality and it durability I know this gonna last me some years well. Thank you Amazon for this quality product.
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Reviewed in the United States on November 17, 2025 by RENIETRENDZZ RENIETRENDZZ
Size: Queen (U.S. Standard)
Style: 12 Inch
The media could not be loaded. I’m absolutely satisfied with this mattress. It worths every dollar I spent! It arrived perfectly packaged and expanded very quickly. Not too hard and not too soft, it provides excellent support and I finally wake up without back pain. Perfect! The quality of materials is great and there was no unpleasant smell at all. We previously had a mattress from a very popular brand and honestly this one is so much better than the expensive branded one. Highly recommend!
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Reviewed in the United States on December 7, 2025 by Gulnar Gulnar