This sola bed can be translormed into a fixed upper bed and into a lower bed with a sliding opening system. The second bed can be lifted by means ol a suitable handle equipped with a patented safety system so as to avoid accidental closing. On the structure ol the mechanism there are some holes for fixing the bayonets to make the fixing ol the covered parts ol the sola simpler and quicker. Il is realized with highly-resistant coldrolled steel tube ol top quality and is lacquered with black epoxy resins in high temperature oven. Il can be embedded alter removing the armrests and the backrests. The several bed bases available are made up ol slats and electrowelded mesh. lt is designed lor mattresses up to 15 cm. thickness. A simple and rapid assembly allows the sale ol the kit.