easy chair having wings on each side of a high back
A wing chair (also, wing-back chair or wing-back) is an easy chair or club chair with "wings" mounted to the back of the chair typically but not always stretching down to the arm rest. The purpose of which was to enclose the head or torso areas of the body in order to provide comfortable protection from drafts, and to trap the heat from a fireplace in the area where the person would be sitting.