Sleeping on their left sides keeps the right side of cats' brains alert and ready to detect immediate threats, scientists say ...

Most cat owners know their pets spend a lot of time asleep, but fewer realize how they sleep might matter. A recent study ...

Cats prefer to sleep on their left side to protect themselves from predators, a study has found. The pets sleep for up to 16 hours a day and often curl up or stretch out for a snooze in opportune ...

The explanation: Cats that sleep on their left side perceive their surroundings upon awakening with their left visual field, which is processed in the right hemisphere of the brain.

Cats overwhelmingly choose to sleep on their left side, a habit researchers say could be tied to survival. This sleep position activates the brain’s right hemisphere upon waking, perfect for ...