sogesfurniture Queen Size Sofa Mattress，4-Inch Gel Memory Foam with Removable Washable Layer for Guest Rooms, Sofas, RVs & Boats, CertiPUR-US Certified, Gray，

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【Revitalizing Comfort That Ends the “Bar-in-the-Back” Feel】Designed with a supportive polyurethane foam base and a gel-infused memory foam top layer, this 4-inch folding mattress gently conforms to your body to reduce pressure on shoulders and hips, while softening the dreaded metal bar feel typical of old sleeper sofas. It provides balanced, medium-firm support for back and side sleepers, turning a sofa bed or daybed into a relaxing retreat for overnight guests, weekend visitors, and everyday lounging. 【Stay Cool and Dry All Night — No More Waking Up Sweaty】Side and bottom ventilation panels work together with a breathable mesh knit cover to actively promote airflow and wick away heat, so you stay comfortably cool hour after hour. The gel infusion in the memory foam helps manage heat buildup, making this mattress a welcome upgrade for anyone tired of waking up hot, sticky, or uncomfortable. 【Space-Saving Design for Hosts, RV Life & Compact Living】Folds smoothly inside most sleeper sofa and pull‑out couch frames, pop‑up trundles, and tight storage spaces — a hassle‑free solution for guest rooms, living rooms, RVs, boats, and marine environments. The non‑slip bottom keeps the mattress securely in place on smooth surfaces, while the 4‑inch slim profile also fits floor sleeping areas, platform beds, and adjustable bed frames. Perfect for hosts with limited space, RV adventurers, students, renters, and new homeowners who want a comfortable bed without sacrificing square footage. 【Certified Safe, Fiberglass‑Free & Healthy for Your Loved Ones】All foams are CertiPUR‑US certified for content and emissions, and the removable, machine‑washable knit cover is OEKO‑TEX Standard 100 certified, ensuring it’s free from harmful substances. An integrated fire barrier meets U.S. Standard 1633, and the entire inner construction is completely fiberglass‑free — so you can offer a wholesome, worry‑free sleep sanctuary to your family and guests. 【Hassle‑Free Setup & Exact Fit You Can Count On】Vacuum‑packed and rolled for easy delivery. Simply unbox, place on a stable base, and allow 48–72 hours to fully expand and recover its shape (expansion may slow in cooler rooms below 15°C). Queen size mattress measures 72"L x 58"W x 4"H can be used as a standalone replacement or directly on top of an existing hard mattress to add instant cushioning — no frame replacement needed. Built to resist sagging and keep its shape after repeated folding, so it stays comfortable for years.