A there-dimensional shaped bedding comprising a confining member and a covering member is disclosed. The confining member encloses a predefined plane. The covering member is connected with the confining member in such a way that the predefined plane is situated on one side of the covering member. The covering member has at least an opening and at least one apical surface. The apical surface is one height apart from the confining member to turn the covering member into a shape of predefined continuous curve and make the apical surface essentially the highest point. The covering member may be folded up through exertion of force, and when the force is removed, restores the shape of predefined continuous curve.