This is a foldable and curly bed board made of solid wood connected by nylon belt, tatami floor mat support, solid wood board, strong and durable, can be placed on the bed frame, can also be directly placed on the floor, 3cm height, breathable and moisture-proof, can effectively prevent the tatami mat due to long-term use of damp and mildew, can be folded and curled storage, can be used as the guest bed floor mat