The Paradoxical Sleep of Dogs: What if you were the hero of their dreams? đŸđ€
Updated 16 October 2026
In short: like us, dogs alternate between deep sleep and REM sleep, the phase linked with dreaming, when they may twitch their legs or nose or give little yips. Recordings of dogs' brain activity (a Budapest research team) show that sleep helps them consolidate what they learned during the day. We can't know what they dream about, but they probably replay scenes from daily life, which you are part of. Let your dog sleep, in a quiet corner.
How do dogs sleep?
Dog sleep, like ours, is made up of deep (non-REM) sleep and REM sleep. During REM sleep, the brain is very active, the eyes move under the lids and the muscles are mostly relaxed, which stops the dog from actually acting out its dreams. Small twitches are still possible: paddling legs, lips, little yips.
Slow, regular breathing, relaxed body. This is the physical recovery phase.
Moving eyes, irregular breathing, twitching legs or whiskers. This is the phase linked with dreaming.
The dog rests but stays alert to sounds: it spends a lot of time in this state between naps.
Does sleep help dogs learn?
Yes, according to the Family Dog Project in Budapest. The team developed a non-invasive way to record dogs' brain activity during sleep (Kis et al., 2014), then showed that certain sleep waves, called spindles, are linked to remembering what the dog learned just before sleeping (Iotchev et al., 2017). One more reason to let a dog rest after a training session.
What do dogs dream about?
We know for sure that dogs dream about their owners.
FALSENobody can check. It's a plausible idea, because dreams seem to replay everyday experiences, and you're a big part of those.
The brain replays experiences during REM sleep.
TRUEThis has been shown in rats (Wilson and Louie, 2001), whose brains replayed a maze run during sleep. It's assumed to be similar in dogs.
Small dogs dream more often than big dogs.
UNPROVENIt's a popular idea, but it hasn't been shown in published studies.
Puppies dream a lot.
TRUEYoung animals sleep a lot and spend a large share of that time in REM sleep, like human babies.
How do you protect your dog's sleep?
Let it dream
Being woken suddenly can startle it, even make it snap by reflex. Call it softly from a distance if you need to.
A spot of its own
A bed away from foot traffic and draughts, where it isn't disturbed.
Full days
Walks, sniffing, play and training all support good-quality rest.
Restless sleep
Violent movements, a dog that won't wake when called, or confusion: talk to your vet.
To choose its bed, see our beds and throws.
Frequently asked questions
Do dogs dream?
Very probably. They have REM sleep similar to ours, the phase when most human dreams happen.
Why does my dog move its legs while sleeping?
These are small twitches during REM sleep. It's normal, as long as it wakes easily when called.
Should I wake a dog having a nightmare?
Better not to touch it: call it softly from a distance. A dog woken with a start may snap by reflex.
Does my dog dream about me?
It can't be proven, but it's plausible: its dreams probably replay its daily life, with you at the centre.
Sources
- Kis A. et al. (2014). Development of a non-invasive polysomnography technique for dogs (Canis familiaris). Physiology & Behavior 130, 149-156.
- Iotchev I.B. et al. (2017). Learning-related sleep spindles in dogs. Scientific Reports 7, 12765.
- Wilson M.A., Louie K. (2001). Temporally structured replay of awake hippocampal ensemble activity during rapid eye movement sleep. Neuron 29(1), 145-156.