A pillow component includes a material layer having a top layer, a bottom layer and one or more sides separating the top layer from the bottom layer, and an interior spaced defined between the top layer and the bottom layer, the interior space configured to receive a filler. The material layer is formed by seamless knitting and is seamless about an entirety of a periphery extending in a first direction around the top layer, the bottom layer and the one or more sides. The characteristics of the knit material layer or fabric can be widely varied. A pillow includes the pillow component and a filler in the interior space.