Dogs Running While Sleeping: Normal or Not?

Why Do Dogs Move While Sleeping?

Dogs, like humans, go through cycles of REM (rapid eye movement) and non-REM sleep. During REM sleep, the brain is highly active, and this is when dreaming typically occurs. Dogs may twitch, whimper, or even make small running motions while asleep—these are signs of brain activity, not full wakefulness.

The movements are often linked to the brain’s processing of daily experiences. For example, dogs may dream about running, chasing, or playing with toys—activities they enjoy during the day. The brainstem helps prevent full physical movement during dreams, but some minor motor activity can still happen.

What Are They Dreaming About?

While we can’t ask dogs what they dream, experts believe their dreams reflect their daily lives. Since dogs spend much of their day focused on their owners, favorite toys, meals, and outdoor play, it’s likely they dream about these things.

One expert noted that dogs probably dream about their owners, parks they’ve run in, and their favorite foods—just as humans dream about people and events important to them. The content of dreams may be distorted or visual, but the core themes match their waking experiences.

Is This Like Sleepwalking?

No, these movements are not sleepwalking. Sleepwalking in humans occurs during non-REM sleep and is not linked to dreams. In dogs, the movements seen during sleep are more likely tied to REM sleep and brain activity, not full motor action.

Experts suggest that most of the movement during dog sleep is not accompanied by complex dream content. Instead, it may simply be the brain’s motor areas becoming briefly active, with little or no associated dream narrative.

How Often Do Dogs Sleep and Dream?

Dogs have more sleep-wake cycles than humans—on average, about 23 cycles per night over an 8-hour period. Each sleep phase lasts around 16 minutes, followed by 5 minutes of wakefulness. This means dogs may enter REM sleep multiple times each night, increasing the chance of dream-related movements.

They spend roughly 90 minutes a day running, chasing, or playing—activities that may be replayed in their dreams. Dogs also spend 120 minutes a day observing their owners, exploring, and thinking—further supporting the idea that these experiences appear in their nighttime dreams.

When to Be Concerned

If your dog’s movements during sleep are violent, frequent, or cause injury, it may be worth consulting a vet. However, mild twitching, barking, or leg paddling during sleep is normal and not a sign of illness.

One study noted that a stressed dog may have disrupted sleep patterns, including fewer active sleep phases. If your dog suddenly changes sleep behavior, it could be a sign of anxiety or discomfort.