Modular furniture support systems

A modular mattress system, comprising:

• a plurality of mattress modules configured to form a first modular mattress of a first selected geometry and being reconfigurable to form a second modular mattress of a second selected geometry, each of the mattress modules having a width (x) and a length (y), wherein the length (y) is substantially equal to two times the width (x);
• a bed casing configured to secure the plurality of mattress modules to form a completed mattress;
• and
• a mattress topper sized and shaped to substantially cover the completed mattress and provide additional cushioning to a user.

A modular bed frame, comprising:

• a plurality of bed frame modules configured to form a first modular bed frame having a first selected geometry and being reconfigurable to form a second modular bed frame having a second selected geometry, the bed frame modules comprising:
• a plurality of uniform-length support modules, and
• a plurality of corner modules,
• wherein the corner modules and the uniform-length support are reconfigurable such the second modular bed frame is selectively formed, and wherein both the first and second selected geometries feature a continuous bed frame structure.

The modular bed frame 28, wherein a plurality of slats extend between opposing uniform-length support modules of the modular bed frame, each of the slats comprising:

• an elongate body having a first end and a second end;
• and
• first and second catches disposed at the first end and second end, respectively, of the elongate body;
• wherein each catch engages a retention member to retain the corresponding slat to the modular bed frame;
• and
• wherein each catch of a slat is configured to slide back-and-forth relative to the corresponding retention member as a portion of the elongate body between the first end and the second end elastically flexes downward and upward in response to forces intermittently pushing downward on the slat during use.

A modular bed frame, comprising:

• a plurality of bed frame modules configured to form a first modular bed frame having a first selected geometry and being reconfigurable to form a second modular bed frame having a second selected geometry, the bed frame modules comprising:
• one or more rails, and
• a plurality of corner modules,
• wherein each of the corner modules of the plurality of corner modules has a length and a width, wherein the length is greater than the width, and wherein each of the corner modules are configured to be selectively repositionable.