3-in-1 convertible design for different uses-Skin-friendly polyester fabric and supportive sponge for ultra comfort-Ergonomic sofa bed well supports your back, waist, and hips-The backrest has 5 adjustable angles to help you relax-Solid metal legs for great strength and sturdiness-2 folding metal legs for easy storage-2 rotatable and lockable wheels for flexible mobility and excellent sturdiness-Removable and washable lumbar pillow cover for easy cleaning-Easy to assemble with a simple structure