Invertible Pillow or Cushion

An apparatus, comprising:

• an external surface of a first form comprising a fastener that forms a first cavity when opened in the first form;
• and
• an internal surface of a second form that forms a second cavity when the fastener is opened in the second form, wherein
• the apparatus is invertible from the first form into the second form, and vice versa, via the first and second cavities, respectively.

A textile product, comprising:

• an external surface of a first form comprising a fastener that forms a first cavity when opened in the first form;
• an internal surface of a second form that forms a second cavity when the fastener is opened in the second form;
• a sack containing filler material, wherein the sack is sewn into the apparatus to help the apparatus keep its shape and to prevent or mitigate against the filler material escaping the sack;
• and
• one or more concealing strips configured to conceal one or more of the first and second fasteners from view, wherein
• the apparatus is invertible from the first form into the second form, and vice versa, via the first and second cavities, respectively.