An adjustable slatted bed base with an outer frame and a lying surface with at least two sections, which is arranged on the outer frame, wherein at least one section is formed as a pivotable section which is pivotable relative to the outer frame, from a flat position into at least one angled position, by an adjusting unit, and the pivotable section has a support device for providing support relative to the outer frame. In order to provide an adjustable slatted bed base, which has a pivotable section which allows easy access to an area beneath the slatted bed base in any operating position, and can be returned to an operational condition quickly and easily, the support device is formed such that it can be disengaged from the outer frame in order to adjust the pivotable section from any set position into a folded-back position, and, when pivoting back into the set position, automatically engages with the outer frame in a supportive manner.
