Abstract: A foldable earthquake protective bed comprises a support frame (10) and two moveable members (20 and 22) pivotally attached to the support frame (10) and capable of being pivoted between a folded position in which the moveable members are arranged as conventional parts of the bed and an unfolded position in which they form a rigid protective cover above the bed's occupant(s). The bed may have a power drive in the form of a pneumatic cylinder (42) with a piston (43) sliding inside the cylinder (42). A piston rod (44) of the piston (43) is pivotally attached by a link (46) to a bracket (30) of the pivotable member (20) and by a link (48) to a bracket (32) of the pivotable member (22). Compressed air can be admitted to the cylinder (42) from a pressure vessel (50) via a control valve (52). This valve can be activated either manually by pushing a pushbutton (62) built into the bed frame, or automatically from a seismic sensor (58) attached to the wall of the building.