Dogs enter rapid eye movement sleep and show behavior that suggests they dream about species-typical activities, researchers and experts say.

That conclusion matters because the way dogs move and vocalize during sleep offers a window into how mammalian brains process daily experience. Research at the The Pet Hospitals and long-standing observations from psychologists point to a strong similarity between human and canine dream patterns. In fact, dogs show REM and non-REM sleep cycles and EEG patterns very similar to humans and other mammals, indicating that their dreaming follows broadly comparable neurophysiological stages.

Laboratory work has used other mammals to map the mechanics of dreaming: rats, for example, have been observed replaying maze-running behavior during sleep, a finding researchers use to compare across species. Those experimental models help explain why dogs twitch, paddle their legs or make noises while asleep; the National Sleep Foundation has reported on such canine sleeping habits.

Stanley Coren, Professor Emeritus of Psychology at the University of British Columbia, said the evidence lines up with everyday observation. “What we’ve basically found is that dogs dream doggy things. The dream pattern in dogs seems to be very similar to the dream pattern in humans,” he said.

Coren’s comment ties laboratory signals to pet owners’ experiences. Many owners notice brief, animated movements during a dog’s sleep cycle: legs twitching, whiskers quivering, or soft barks. Those motions match the REM-stage muscle activity scientists record and interpret as dream enactment. Interestingly, dogs spend around 10–12% of their sleep time in REM sleep, the stage associated with dreaming, which is less than the roughly 20–25% of REM sleep humans experience. What percentage of a dog’s sleep is spent dreaming compared to humans?

Researchers have also examined neurological contributors to those behaviors. The brainstem region called the pons plays a role in preventing full-body movement during REM sleep; facts drawn from animal studies show this region is underdeveloped in puppies and becomes less efficient in older dogs. That developmental arc helps explain why very young dogs may appear especially active during sleep and why older dogs sometimes show disrupted or more apparent dreaming behavior.

Practical examples appear in everyday life. One owner described comforting their dog after it woke from what the owner interpreted as a nightmare about bath time. That moment, of waking and reassurance, reflects how human caretakers often respond to visible signs of distress that follow intense sleep activity. If pet owners want to create a more comfortable sleeping environment for their dogs, they can create a more comfortable sleeping environment for their dogs by providing a supportive, appropriately sized dog bed in a quiet, low-traffic, draft-free area of the home.

Wider discussion of canine sleep and dreams appears across veterinary and pet-care outlets. A review of dog dreaming and sleep stages is available from The Pet Hospitals, while comparative pieces on dreaming across animals appear at Canineevolutions and Bluebuffalo, which summarize how REM and non-REM cycles in dogs align with patterns seen in other mammals.

Those sources and expert commentary converge on a central point: dogs experience REM sleep and display behaviors during that stage consistent with dreaming. Scientists draw on cross-species laboratory models to interpret those behaviors rather than assuming the content of a particular animal’s dream.

As research methods evolve, neuroscientists continue to use animal studies to probe how memory consolidation and daily experience are processed in sleep. For dog owners and clinicians, the observable signs—twitching, leg movement and vocalizations—offer a practical signal that the animal is cycling through REM and likely dreaming in a way that mirrors human sleep architecture.

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Original reporting: view the original article.