What is An oval gusset pillow ? 1. An oval gusset pillow is a type of pillow designed with an oval-shaped gusset around its perimeter. A gusset is an extra piece of fabric sewn into a seam to add strength or shape to an item. In the case of a pillow, the gusset adds depth and structure to the pillow, helping it maintain its shape and providing additional support for the head and neck. 2. The oval shape of the gusset pillow can offer a unique aesthetic appeal and may also provide some ergonomic benefits, as it can conform better to the contours of the head and neck compared to traditional rectangular pillows. This type of pillow is often used for decorative purposes or for providing extra support while sleeping or lounging.