A Hacker News thread discusses a study on cats' preferred sleeping positions ("Lateralized sleeping positions in domestic cats"). The study analyzed 408 YouTube videos and found a leftward sleeping bias in cats. Commenters quickly pointed out a potential error: the images accompanying the graph seemed to contradict the "leftward" and "rightward" labels, as the curled cat postures appeared swapped. Users suggested clarifying the terms as "clockwise" or "counterclockwise" from the cat's head. Another commenter explained that "leftward" referred to lying on the left side, not necessarily curling in that direction. However, they questioned the study's reasoning that a leftward position provides a better left visual field upon waking, noting that a cat's left eye might be obscured in that position. Another user humorously suggested "chirality" to describe cat sleeping positions: clockwise, counterclockwise, or corkscrew.