Abstract: An articulated bed comprising: a central platen comprising a headboard end, a footboard end, a first side platen edge and a second side platen edge; a headboard frame pivotally connected to the headboard end of the central platen at a headboard frame pivot point with a central platen headboard bar linkage; a footboard frame pivotally connected to the footboard end of the central platen at a footboard frame pivot point with a central platen footboard bar linkage; a first side platen hinged to the first side platen edge of the central platen, connected to the headboard frame with a first side platen headboard bar linkage and connected to the footboard frame with a first side platen footboard bar linkage; a second side platen hinged to second side platen edge of the central platen, connected to the headboard frame with a second side platen headboard bar linkage and connected to the footboard frame with a second side platen footboard bar linkage; and means for articulating at least one of the central platen headb