Abstract: A window treatment holding system having an elongated pocket member defining a pocket profile, or structure, in which a bracket is received in a snap-fit arrangement. The system is capable of generally concealing the mechanical portion of a window treatment and includes the bracket being designed to carry the head rail of a conventional horizontal or vertical blind, or a drapery rod or channel. The pocket member can be of a variety of configurations and can be fastened over a window, in the ceiling, fastened to the wall or window frame adjacent the window, or incorporated into the window mullion head. Various pocket profiles are provided, some designed to be concealed from view, and others having decorative external portions for providing an aesthetically appealing appearance. The pocket member could be molded or extruded as a part of a window frame or the window mullion head. Also, the pocket profile can be created using a pocket adapter and snapped into place in a conventional mullion cavity.