Modular high-low bed

A modular high-low bed comprising:

• a frame comprising a top section and a bottom-frame section connected together by a lift mechanism comprising a hinge assembly that raises the top section linearly upward with respect to the bottom-frame section, wherein the hinge assembly further comprises of two pairs of hinged cross bars on opposite lateral sides of the frame wherein each of the two pairs of hinged cross bars are connected together at a pivot point and each end of the two pairs of hinged cross bars are connected to a slide combined to the respective top section and the bottom-frame section so that when the two pairs of hinged cross bars pivot at the pivot point the respective ends move linearly toward each other to raise the top section with respect to the bottom-frame section and linearly away from each other to lower the top section toward the bottom-frame section;
• a first state comprising
• a separately, selectably attachable platform comprising a pair of lateral extensions that attach to one of each of the longitudinal sides of the top section of the frame in the first state to increase the lateral width of the frame with a plurality of attachable boards extending across and attachable to each of the lateral extensions for receiving a mattress thereon;
• and
• a second state comprising a separately, selectably attachable head-foot module comprising a bottom section, legs extending downward from the bottom section that are combinable, directly to the top section of the frame in the second state, and a head section and a foot section each independently adjustable with respect to each other with respect to the bottom section of the head-foot module and with respect to the top section of the frame, wherein the separately, selectably attachable platform is removed from the frame in the second state and wherein the head-foot module is removed from the frame in the first state.