Buzz
Dogs are known for their odd behaviors, such as digging in their beds or resting a paw on your arm. These behaviors even extend into their sleep, with dogs twitching their legs as if they're running. Is this really what's happening?
For very young puppies, what looks like 'running' could just be normal muscle twitching, a common part of their development. But if your older dog still moves its legs, it's likely reacting to a dream where it’s running towards something. While we can’t say for sure whether dogs dream, we do know they experience both REM and slow-wave sleep, with REM being a deeper sleep stage where, in humans at least, dreams occur. Since dogs spend less time in REM sleep than humans—only about 10 percent of their total sleep, compared to 25 percent in humans—they tend to sleep more overall, which is why your dog might seem to be asleep almost all day and night.
During REM sleep, dogs might respond to their dreams by moving their legs, whimpering, or even barking. These reactions are more common when dogs remain in REM sleep without being disturbed by visitors, children, or other pets at home.
Some pet owners notice their dogs twitching or having spasms and worry that the dog might be having a seizure. However, seizures can occur whether the dog is awake or asleep and are usually accompanied by open eyes. If your dog just has a few twitches while resting, it’s likely that he’s simply dreaming of a stick, a Frisbee, or having fun with his owner.
