--- product_id: 52874638 title: "Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White" brand: "zinus" price: "Β₯276704" currency: JPY in_stock: false reviews_count: 10 url: https://www.desertcart.jp/products/52874638-zinus-8-inch-foam-and-spring-mattress-california-king-certipur store_origin: JP region: Japan --- # Mattress-in-a-box, easy setup 8-inch hybrid foam & spring comfort CertiPUR-US certified durable foam Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White **Brand:** zinus **Price:** Β₯276704 **Availability:** ❌ Out of Stock ## Summary > πŸ›οΈ Sleep smart, wake unstoppable β€” the mattress that works as hard as you do. ## Quick Answers - **What is this?** Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White by zinus - **How much does it cost?** Β₯276704 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/52874638-zinus-8-inch-foam-and-spring-mattress-california-king-certipur) ## Best For - zinus enthusiasts ## Why This Product - Trusted zinus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Setup:** Compressed and shipped in a compact boxβ€”unroll and expand within 72 hours, no hassle. - β€’ **Hybrid Comfort Fusion:** Soft ViscoLatex foam meets resilient steel coils for balanced support and plushness. - β€’ **Certified Peace of Mind:** CertiPUR-US certified foams ensure durability, safety, and performance you can trust. - β€’ **10-Year Worry-Free Warranty:** Long-lasting quality backed by a decade of protection for your investment. - β€’ **Tailored for Stomach Sleepers:** Optimized firmness and conforming layers to keep your spine aligned and pressure-free. ## Overview The Zinus 8 Inch Foam and Spring Mattress combines high-density foam, conforming ViscoLatex, and heavy-duty steel coils to deliver durable, balanced support ideal for stomach sleepers and average-weight adults. CertiPUR-US certified for quality and safety, it ships compressed in a box for easy delivery and expands to full comfort within 72 hours. Backed by a 10-year warranty, this mattress offers a premium sleep experience with effortless setup. ## Description If even and perfectly cushioned support strikes your fancy, then the Foam and Spring Mattress is your ticket to many well-rested mornings to come. Featuring a fiber quilted cover, CertiPUR-US Certified high-density and Viscolatex foams, and a base layer of heavy duty steel innersprings, this mattress is equipped with the right blend to let your joints and spine rest comfortably. With a touch of enveloping softness from our Viscolatex foam backed by reliable traditional innersprings, this mattress is especially ideal for stomach sleepers and those who enjoy a reactive feel. Rolled and shipped in a box that arrives at your doorstep with a 10-year worry-free warranty in tow, it’s equipped with just about everything you need to enjoy smooth snoozing. So all that’s left for you to do is tuck in and close your eyes, no sheep-counting required. ## Features - DURABLE COMFORT – When soft, yet durable foam layers combine with steel innersprings, a match made in mattress heaven happens, resulting in this supportive spring mattress with the right hint of conforming softness - TOP QUALITY LAYERS - .5 inch durable high-density foam, 1 inch conforming ViscoLatex foam, and a 6 inch base layer of heavy duty steel coils; ideal for stomach sleepers and petite to average weight individuals - CERTIPUR US CERTIFIED - Highest quality foam is CertiPUR US Certified for durability, performance, and content - EXPERTLY PACKAGED - Our technology allows this mattress to be efficiently compressed into one box that’s easily shipped and maneuvered into the bedroom; simply unbox, unroll and this mattress does the rest, expanding to its original shape within 72 hours - Worry-free 10 year limited warranty included; twin mattress supports a maximum weight of 250 lbs, while all other sizes can support up to 500 lbs ## Technical Specifications | Specification | Value | |---------------|-------| | Item Weight | 87.6 pounds | | Product Dimensions | 84 x 72 x 8 inches | | Item model number | OLB-BNSM-8CK | | Is Discontinued By Manufacturer | No | | Assembled Height | 8 inches | | Assembled Width | 72 inches | | Assembled Length | 84 inches | | Age Range Description | Adult | ## Product Details - **Brand:** Zinus - **Size:** California King - **Product Dimensions:** 84"L x 72"W x 8"Th - **Top Style:** Tight Top - **Cover Material:** Polyester - **Number of Layers:** 3 - **Fill Material:** Steel Coils - **Weight Limit:** 500 Pounds - **Special Feature:** Durable - **Color:** White ## Images ![Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White - Image 1](https://m.media-amazon.com/images/I/814YrYLH3KL.jpg) ![Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White - Image 2](https://m.media-amazon.com/images/I/918NSrbJSbL.jpg) ![Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White - Image 3](https://m.media-amazon.com/images/I/81OXvnGscWL.jpg) ![Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White - Image 4](https://m.media-amazon.com/images/I/81aVHnQMTeL.jpg) ![Zinus 8 Inch Foam and Spring Mattress, California King, CertiPUR-US Certified Foams, Mattress in A Box, White - Image 5](https://m.media-amazon.com/images/I/81rjrGLdJ5L.jpg) ## Available Options This product comes in different **Pattern, Color, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Zinus mattress, Full Size *by V***Y on Reviewed in the United States on April 3, 2024* Oh my goodness! I am so pleased with this mattress! I got it early, which was nice. It was delivered by UPS,and I am grateful that they were good enough to bring it to the top step outside my front door. It was raining, but it was well packaged. I got it upstairs ( no easy fete, as I'm 5 ft 2 and am slightly older- don't ask! πŸ˜‰ ) I noticed on the outside of the box that the mattress should be unpacked within 72 hours ( for proper inflation, I think? ) I'd bought a twin in this brand before, but hadn't noticed that piece of information. The twin, BTW, was also a great purchase. Some reviews aren't as favorable as mine, and I wonder if that piece of unpacking info might be a factor. It's a good idea, regardless.In any event, this mattress will be left for proper and full inflation before I put it on the bed (that's due, tomorrow.) Hopefully that will be reviewed as favorably as this mattress.This mattress is just the right firmness and is soft to the touch. It is a very nice product, and I am so glad I bought it. I definitely recommend it! ( make sure you pay attention to that 72 hour caveat, though. I don't think they would include it if it didn't matter. ) The funny little warning advisory was appreciated, too. " Hand this to the responsible one... It knows Kung Fu." I have quick reflexes, as well, so... πŸ˜‰ The price point was excellent, too. Very much appreciated! UPDATE: I've had this for a bit and unfortunately, my initial enthusiasm has lessened. Still a nice enough mattress, but has minimal side support. I'm going to put it in my second bedroom on the bed I also got from Amazon ( too masculine ) and have ordered a fuller and hopefully a firmer mattress. This was a 10 inch, and that was my mistake. In order to get the height, I ended up buying a 3 inch memory foam and two ( supposedly ) 4 inch mattress toppers. All in, they might equal the 12 inch that I finally ordered. Zinus is a good product, but if you want better side supports and a taller mattress, order one from the start. It turned out to be an expensive lesson. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Comfort *by R***D on Reviewed in the United States on November 20, 2024* I have bought several. Great value. Very durable. Able to transport well. So soft yet holds up great. I had them for years and still as good as when new. ### ⭐⭐⭐⭐ 4.0 out of 5 stars A decent mattress for the money *by A***M on Reviewed in the United States on November 24, 2017* After reading product reviews for mattresses in pretty much every price category, and realizing that no matter how much a person spent average satisfaction never went over the satisfaction rating for this mattress, I decided to give it a try. I'm from the old school when mattresses could easily last 10 years or more and have mainly been frustrated by sagging issues of several mattresses we've purchased since the introduction of pillow tops and memory foam including the inability to flip (not just turn) the mattresses which helps prolong wear. Sure the comfort is great at first until you are inevitably sleeping in a furrow which seems to start sometime in the first year, which is just unacceptable.So my strategy in purchasing this mattress was to essentially build my own, starting with the springs which is all this pretty much is with a thin layer of foam padding. I've read all kinds of reviews about how this is just as comfortable as a high end mattress and sorry but that's a little crazy, it's not even as comfortable as the $400-500 pillowtop mattress that started failing after only a year of use and is not so great anymore for my back. But this mattress is nice and flat and that's a plus. The springs are firm but have just a bit of give to conform to the body. And if they can hold over time, we can add a pillow top or memory foam layer over it to create a more comfortable mattress. This way if one of the two go soft or saggy we'll only have to replace one. And given that the springs don't have much of a "top" layer I assume I'll be able to flip it (as I'll be able to flip the top layer) independently of one another to hopefully prolong the life and comfort. Only time will tell but if this doesn't work out longer term the only option left will be an air mattress, which are probably the only ones that don't suffer from sagging issues but are super expensive.A word of caution about the packaging, it is well labeled in regard to opening it but definitely didn't prepare us for how the mattress would literally spring up off the box spring where we were opening it when I cut the last piece of the plastic packaging it comes shipped in. Also, be prepared to give a tip to the delivery person (if you're so inclined) because they are actually quite heavy and I regretted not having a five ready to give to the guy who had to load it and then bring it to my door. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/52874638-zinus-8-inch-foam-and-spring-mattress-california-king-certipur](https://www.desertcart.jp/products/52874638-zinus-8-inch-foam-and-spring-mattress-california-king-certipur) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-26*