The present invention is directed to a collapsible cover for protecting an occupant in a seating unit having a head region and a
foot region. The cover has a body comprised of a flexible material having a top portion and at least one side wall portion, the top portion having a generally
ellipse shape and having a length to span the distance between the head region and
foot region of the seating unit and a width to span the width of the seating unit. The sidewall portion is connected to the top portion along a substantial portion of the periphery of the top portion to provide an arched configuration to the top portion. The cover further has a single
closed loop frame member made of a flexible, coil-able, resilient material, that is secured along the length of the structure's membrane body so as to assume an
ellipse-like shape when viewed from above, that is bent into an arched configuration about its
minor axis. The
closed loop frame member is movable between an extended orientation to allow the cover to be attached to the seating unit and a collapsed orientation to allow for a
reduced size of the cover for transport and storage and is connected to the periphery of the top portion to provide in the extended orientation an arched
ellipse shape about the length of the top portion. The cover also has a means for releasably attaching the cover to a seating unit