Abstract: A modular furniture assembly including and a lower bed that are selectively positionable between a stacked position and an unstacked position. The upper and lower beds include a series of supports that form mating pairs to support the beds in the stacked position. Each bed support of the upper bed include a bottom end with a bore extending therethrough. A pin is retainably mounted within each bore and is slidable between an extended position and a retracted position. Supports of the bottom bed each have a connector bore that extends through a top end of each of the bed supports. Split sleeves are fixably attachable within the bores of the supports for the upper and lower beds to form a stop that retains the pins in the bores. When placed in a stacked position, the pins extend into the bores of the supports for the lower beds to link the mating support pairs together. The pins fully retract into the bores of the bed supports when the beds are positioned in the unstacked position.