How do scientists know dogs experience REM sleep?

While dogs, like humans, exhibit distinct EEG patterns during REM sleep, characterized by rapid, desynchronized brainwaves and rapid eye movements, the specific subjective experience of dreaming remains unmeasurable. Dogs spend around 10-12% of their sleep in REM, a proportion comparable to humans. Larger dogs tend to have longer dream cycles but fewer dreams than smaller dogs. To learn more about canine sleep and its implications for your furry friend, explore our comprehensive guide.