The Koala Sofa Bed [4th Gen] is a convertible sofa bed that transforms from sofa to bed using Koala's FlipBed design. The frame is 100% FSC-certified poplar plywood and MDF, with CertiPUR-US certified polyurethane foam and an integrated Kloudcell topper. The 4th Gen features an 11% deeper seat than the previous generation at 23.5 inches, with a multi-layer pillow-top comfort system. Fabric options include blends with a minimum of 35% recycled content, and all fabrics are water-resistant with PFAS-tested treatments. Covers are fully removable with a quick-slip design and are machine washable. Available in queen (70 inches), full (64 inches), and twin XL (46 inches) sizes. Each seat supports up to 264 lbs. The Koala Sofa Bed [4th Gen] is a three-time ProductReview Award winner (2023-2025) and comes with a 5-year warranty and 120-day trial.