Overview

• The study published in Current Biology analyzed 408 YouTube videos of domestic cats sleeping to assess side preference.
• Researchers found that about two-thirds of the cats chosen rested on their left side.
• Domestic cats spend 12 to 16 hours a day sleeping in vulnerable elevated spots such as sofas or stairs.
• The right brain hemisphere’s dominance in spatial attention, threat processing and escape coordination likely drives the left-side bias.
• The research team calls for further investigation into other factors influencing this lateralized sleep behavior.