--- product_id: 651668437 title: "Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin" brand: "zinus" price: "4249 kr" currency: DKK in_stock: true category: "Zinus" url: https://www.desertcart.dk/products/651668437-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin store_origin: DK region: Denmark --- # Compact eco-friendly packaging Tool-free snap assembly Dual height customization Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin **Brand:** zinus **Price:** 4249 kr **Availability:** ✅ In Stock ## Summary > 🛏️ Elevate your sleep game with smart support that’s easy, eco-friendly, and built to last! ## Quick Answers - **What is this?** Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin by zinus - **How much does it cost?** 4249 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/651668437-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin) ## 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 - • **Durable Steel Frame:** Robust alloy steel construction supports up to 158.76 kg for long-lasting mattress stability. - • **Sleep with Confidence:** Backed by a 5-year worry-free warranty for peace of mind every night. - • **Custom Comfort Heights:** Choose 5 or 9 inches to tailor your sleep foundation perfectly. - • **Effortless Setup in Minutes:** Tool-free design snaps together quickly—no frustration, just fast comfort. - • **Eco-Conscious Compact Delivery:** Small, easy-to-maneuver WonderBox packaging reduces your carbon footprint. ## Overview The Zinus 9 Inch WonderBox Smart Box Spring in Twin size offers a durable steel frame with a squeak-resistant design, delivered in compact, eco-friendly packaging. Its tool-free assembly and dual height options (5 or 9 inches) provide customizable comfort and quick setup. Supporting up to 158.76 kg and backed by a 5-year warranty, it’s engineered for long-term mattress support and hassle-free installation. ## Description As the backbone for solid mattress support, a box spring that falls short can make or break your night’s sleep. We developed the Smart BoxSpring® with unbeatable durability and rock-solid stability to keep your mattress in shape for years to come. And our latest quick assembly version gives you total confidence when it comes to setup, requiring fewer bolts and ingeniously designed with easy to use, tool-free brackets. With our simple, step-by-step instructions on hand, you’ll have this foundation built and ready to use within minutes. Built with a strong and durable steel frame and a versatile poly jacquard cover that slips right on, the Smart BoxSpring® is the picture of dependability for any mattress. All packed in a compact shipping box with everything included, even our 5-year worry free warranty! Now that’s peace of mind you can sleep on. ## Features - EASY DELIVERY & A CLEANER PLANET – Delivered in our earth-friendly WonderBox that is surprisingly small and easy to maneuver through doorways and tight corners. - EFFORTLESS ASSEMBLY - Tool-free design snaps together in minutes for a frustration-free setup. - CUSTOMIZABLE COMFORT - Choose from two heights to create your perfect sleep oasis – 5 inches for a lower profile, or 9 inches for an extra boost. - DURABLE STEEL CONSTRUCTION - Provides long-lasting support for your mattress, maximizing comfort and lifespan. - WORRY-FREE WARRANTY – Sleep soundly with an included 5-year warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D2VMS5TM | | Brand Name | Zinus | | Color | Grey | | Compatible With Mattress Size | Twin | | Customer Reviews | 4.0 4.0 out of 5 stars (289) | | Finish Types | Painted | | Form Factor | Box Spring | | Furniture Finish | Unfinished | | Global Trade Identification Number | 00841550372694 | | Included Components | Box Spring, Instruction Sheet | | Item Dimensions | 187.5 x 96.3 x 22.9 centimeters | | Item Dimensions L x W x H | 187.5L x 96.3W x 22.9H centimeters | | Item Type Name | Box Spring | | Item Weight | 9.22 Kilograms | | Manufacturer | Zinus | | Manufacturer Part Number | ZU-FBSSG1OC-09T | | Material Type | Alloy Steel | | Maximum Weight Recommendation | 158.76 kg | | Model Number | ZU-FBSSG1OC-09T | | Number of Items | 1 | | Other Special Features of the Product | Squeak Resistant | | Required Assembly | Yes | | Shape | Rectangular | | Size | Twin | | Style Name | 9 inch | | UPC | 841550372694 | | Unit Count | 1 Count | ## Product Details - **Material:** Alloy Steel - **Product dimensions:** 187.5L x 96.3W x 22.9H centimeters - **Size:** Twin - **Special features:** Squeak Resistant - **Style:** 9 inch ## Images ![Zinus 9 Inch WonderBox(TM) Smart Box Spring, Grey, Twin - Image 1](https://m.media-amazon.com/images/I/61vyLl9KXCL.jpg) ## Available Options This product comes in different **Color, Size** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/651668437-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin](https://www.desertcart.dk/products/651668437-zinus-9-inch-wonderbox-tm-smart-box-spring-grey-twin) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-08-25*