--- product_id: 27571542 title: "Twin Size 4 Inch Firm Conventional Polyurethane Foam RV/Truck Mattress Bed Cushion USA Made" brand: "americanmadefoam" price: "8177223₫" currency: VND in_stock: false reviews_count: 8 url: https://www.desertcart.vn/products/27571542-twin-size-4-inch-firm-conventional-polyurethane-foam-rv-truck store_origin: VN region: Vietnam --- # 4" Firm Foam 3-Year Warranty USA Made Twin Size 4 Inch Firm Conventional Polyurethane Foam RV/Truck Mattress Bed Cushion USA Made **Brand:** americanmadefoam **Price:** 8177223₫ **Availability:** ❌ Out of Stock ## Summary > 🚐 Sleep Like a Pro on the Go! ## Quick Answers - **What is this?** Twin Size 4 Inch Firm Conventional Polyurethane Foam RV/Truck Mattress Bed Cushion USA Made by americanmadefoam - **How much does it cost?** 8177223₫ with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/27571542-twin-size-4-inch-firm-conventional-polyurethane-foam-rv-truck) ## Best For - americanmadefoam enthusiasts ## Why This Product - Trusted americanmadefoam brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Quality:** Crafted with 33lb conventional polyurethane for long-lasting use. - • **Risk-Free Trial:** Enjoy a 30-night sleep trial to ensure your satisfaction. - • **Unmatched Comfort:** Experience superior spinal alignment with our 4" firm foam. - • **Pressure Point Relief:** Say goodbye to discomfort with our supportive cushion design. - • **Designed for Adventure:** Perfect for RVs and trucks, not for home or mobile home use. ## Overview This Twin Size 4 Inch Firm Conventional Polyurethane Foam Mattress is designed for RV and truck use, providing exceptional support and comfort with a 33lb compression foam. Made in the USA, it comes with a 30-night sleep trial and a 3-year limited warranty, ensuring quality and satisfaction. ## Description Firm polyurethane foam's ability to reduce sagging and soft spots is one of the reasons so many people are using it to get the best night's sleep. Now you can enjoy the benefits of a firmer sleep surface without having to buy a new mattress by adding this firm polyurethane foam mattress topper to your existing spring, latex, or even memory foam mattress. This topper will add comfort, increase the firmness and your quality of sleep from your mattress immediately. Four inches of conventional polyurethane foam used in this topper is specifically designed to enhance the feel of your current mattress, and also provides additional support in areas where your mattress may be dipping or sagging. The open cell urethane foam is also specially formulated to help support the contours of your body, and will give you the extra support you need to get the best night's sleep possible from your current mattress. Environmentally friendly processes are used to make our foam. This makes our toppers more "green" and eco-friendly, by the use of earth friendly processes. Our toppers have also earned the PURGreen certification, which means they are safe and free from harmful chemicals. PURGreen uses independent laboratories to test products and ensure they are manufactured without use of prohibited content such as ozone-depleting CFCs, PBDE fire retardants, lead, mercury and other unsafe materials. PURGreen also sets baseline requirements for foam physical performance that can contribute to foam comfort and durability.***There may be a new foam smell associated with your new topper; however, this odor is not toxic or harmful passing all EPA and CSPC standards. MADE IN THE USA ## Features - About this item - One four inch firm slab of foam 33lb conventional polyurethane 4" layer of Firm Superior Support Foam for spinal alignment and transitional support. Our firm conventional polyurethane foam features a 33lb compression. This firm conventional polyurethane foam slab is a supportive cushion reducing pressure points. 30 NIGHT SLEEP TRIAL! 3 Year Manufacturer Limited Warranty! Not For Home or Mobile Home Use. ›See more product details ## Images ![Twin Size 4 Inch Firm Conventional Polyurethane Foam RV/Truck Mattress Bed Cushion USA Made - Image 1](https://m.media-amazon.com/images/I/61rQYypVdWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect! *by P***R on Reviewed in the United States on January 26, 2018* Very pleased, I have slept very well and woke up refreshed. I drive a volvo truck, semi tractor. It was easy cut about 4 inches off the width a knife. I put it right on top of the cheap-o mattress that company provides and only wish I'd done it sooner. Also, I'm sure this would vary depending on location but it said delivery would take 7 to 14 days but it arrived in 3 days. ### ⭐⭐⭐⭐⭐ Comfort for firm people *by M***Z on Reviewed in the United States on October 1, 2021* If you like a firm mattress, this is great right on the floor. ### ⭐⭐⭐⭐⭐ Good *by R***S on Reviewed in the United States on December 18, 2018* My daily sleeper in a canvas wall tent. Very comfortable for my old bones. --- ## 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.vn/products/27571542-twin-size-4-inch-firm-conventional-polyurethane-foam-rv-truck](https://www.desertcart.vn/products/27571542-twin-size-4-inch-firm-conventional-polyurethane-foam-rv-truck) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-20*