Zipper construction for mattresses and the like

In a mattress construction comprising a filler and a mattress cover, said cover defining an opening along at least one of its sides, and a zipper including a chain and closer for closing said opening, the improvement comprising a fabric section connected to said cover and extending perpendicular to said zipper, said section comprising a double thickness of fabric extending in overlapping relationship with a portion of the cover supporting said zipper whereby the section overlaps one end of said zipper, said double thickness including a first layer comprising a continuation of the fabric on a side of the cover and a second layer comprising a return portion of the first layer, a fold defined at the juncture of said layers, and a pocket defined by said section for receipt of said closer when said opening is closed, said fold being stitched to said portion of the fabric supporting the zipper, and wherein said stitching is interrupted at an intermediate position to provide the opening for said pocket.