Abstract: The present invention provides a pillow or sleep positioner comprising a main body, the main body comprising an upper surface and a lower surface, and a neck supporting portion and head supporting portion, wherein the main body comprises a region of increased deformability relative to other parts of the main body such that when a user's head is resting on the head supporting portion, a recess, preferably a concave recess, defines a head receiving portion in an upper surface of the head supporting portion.