Dyonery 4" Queen Sofa Bed Mattress Replacement, Gel Memory Foam Sleeper Sofa Mattress with Washable Cover, CertiPUR-US Certified for Couch Beds

Premium Memory Foam: The four-inch cooling firm mattress topper made of high-quality memory foam helps relieve stress, strikes a balance between comfort and firm support, and provides a deep sleep experience, thereby enhancing your sleep quality. Wide Range of Application Scenarios: This sofa bed mattress (sofa NOT included), is suitable for use in dormitories, during camping, in RVs, and on sofa beds. It can also be used as a replacement mattress for the sleeper sofa. The mattress topper is easy to fold and convenient to store, which can save your storage space. CertiPUR-US Certification: This sofa bed mattress topper has passed the CertiPUR-US certification, allowing you to sleep soundly and securely. The combination of gel memory foam and high-density support foam provides you with a comfortable and safe sleep experience. Anti-slip & Washable Mattress Cover: The anti-slip pad at the bottom of the mattress topper ensures that the mattress will not shift even when you toss and turn during sleep. It comes with a cooling, soft, and washable topper cover that is easy to clean, so you don't have to worry about long-term use. Convenient Installation and Quick Rebound: This mattress is delivered in a vacuum-compressed package. After being left to stand for 24 - 48 hours, it will fully rebound, enabling you to immediately enjoy the optimal support and comfort.