[Practical Space-Saving]This sofa bed with a trundle offers an excellent way to maximize space. First, store the trundle under the sofa bed to save space. Second, It effortlessly expands your sleeping space while maintaining a chic and organized look.[Sturdy and Reliable Support]Featuring heavy steel slat support, this trundle bed twin ensures stability and comfort, offers a long-lasting durability and reliable support, making it a practical choice for households with children or frequent guests.[Industrial Lockable Casters]The wheels of this sofa bed with trundle are industrial-grade, offering strong wear resistance and long-lasting durability. The daybed with lockable casters, ensuring stability and safety when in use, and easy mobility when needed.[Outer Dimensions]Our daybed is a 74.6 inches (L) x 43 inches (W) x 32.2 inches (H) Twin size sofa bed with 14.2 inches of height from the floor to provide under-bed storage space.