Study Reveals Most Cats Prefer Sleeping on Their Left Side

Fast Summary

• New research reveals that two-thirds of domestic cats prefer sleeping on their left side,giving their right brain hemisphere a strategic advantage in processing visual threats.
• Domestic cats spend 60-65% of their lives sleeping and are vulnerable during rest due to reduced anti-predator vigilance.
• Cats often sleep in elevated positions to reduce predation risks, enhancing visibility of approaching predators while staying concealed themselves.
• researchers analyzed 408 public YouTube videos showing cats in uninterrupted sleeping positions; findings showed a majority (65.1%) chose the leftward position compared to the rightward (34.8%).
• Sleeping on the left side aligns with evolutionary benefits as the visual field is processed by the brain’s right hemisphere, which specializes in spatial awareness and threat responses.

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