A headrest for supporting a person's head includes a back panel adapted to abuttingly engage a person's head that includes a first hinge-forming groove at each end, and two side wing members pivotally and foldably attached to the back member at or near its ends with the side wing members including an...http://www.google.fr/patents/US6601804?utm_source=gb-gplus-shareBrevet US6601804 - Portable headrest
