This sofa bed is equipped with a hydraulic system that allows the slatted frame to be easily lifted by fabric pulls. It increases the overall functionality of the bed and provides more storage space for blankets, pillows and other miscellaneous items. The sofa bed is equipped with two stoppers to prevent the mattress from slipping, ensuring your stability while in use. The slatted base is made of high-quality iron to ensure durability and stability. The contact surfaces of the iron parts are covered with an EVA sound-absorbing membrane, which not only increases comfort and quietness during use, but also extends the life of the sofa bed.