Captive corner mattress-retention mechanism

A mattress-retention mechanism, comprising:

• an upper retaining component comprising:
• (1) a mattress-support structure adapted to support at least one corner of a mattress, at least a portion of the mattress-support structure having a curved interior surface;
• and
• (2) a foundation attachment surface perpendicular to the curved interior surface, wherein the foundation attachment surface comprises a lock component imbedded in a lower surface of the foundation attachment surface;
• and
• a lower retaining component comprising a socket component that protrudes from a top surface of the lower retaining component, wherein the lower retaining component is removably attached to a top of a mattress foundation,
• wherein the socket component of the lower retaining component is capable of mating with the lock component of the foundation attachment surface, thereby coupling the upper retaining component to the lower retaining component.

A mattress-retention mechanism, comprising:

• a mattress-support structure adapted to support at least one corner of a mattress, at least a portion of the mattress-support structure having a curved interior surface, wherein the curved interior surface conforms to a curve of a vertical side of the mattress;
• a foundation attachment surface for removably attaching the mattress-retention mechanism to a top of a mattress foundation, wherein the foundation attachment surface is perpendicular to the curved interior surface;
• and
• a bedding aperture positioned in a side surface of the mattress-support structure, the bedding aperture adapted to accommodate bedding inserted through the bedding aperture.