Puppies usually twitch in their sleep because their brains and nervous systems are still developing and they’re actively dreaming, which makes small muscles “fire” while they’re in deep, REM sleep. In most cases, this twitching is normal, especially if the puppy otherwise wakes up easily, looks relaxed, and acts normally when awake.

What’s Happening In Their Sleep

  • During REM sleep, the part of the brain that normally “switches off” muscle movement is weaker in young puppies, so dream signals can leak through and cause leg kicks, jaw chomps, and tail flicks.
  • Because puppies process lots of new experiences, they spend more time in this dream-heavy sleep stage, which is why they twitch more than healthy adult dogs.

Normal Twitching vs. Warning Signs

Normal puppy twitching usually looks gentle and short-lived. Abnormal twitching looks more like a seizure or major health problem and needs urgent vet care.

Normal, harmless signs

  • Light paddling of the legs, tiny jerks, or whisker/ear twitches.
  • Occasional soft yips, squeaks, or quiet “running” motions while still relaxed.
  • Puppy wakes up fairly easily and is alert and normal afterward.

Concerning signs – call a vet

  • Stiff, rigid body; violent, repeated jerking; or body fully locked up.
  • Heavy drooling, chomping, loss of bladder/bowel control, or your puppy seems “not really there” or confused after the episode.
  • Twitching that happens when the puppy is awake, or episodes that are very frequent or getting worse over time.

Other Possible Causes (Besides Dreaming)

Most twitching is dream-related, but sometimes it can hint at something medical.

  • Developing nervous system and growth: Newborns and young puppies often twitch more as part of healthy neuromuscular development.
  • Outside noises or temperature: Sudden sounds (thunder, fireworks) or feeling cold can make a sleeping puppy twitch or shiver.
  • Health issues: Seizure disorders, low blood sugar, toxin exposure (like certain human foods or chemicals), or metabolic problems can also cause abnormal twitching or tremors.

What You Can Do At Home

  • Gently observe instead of waking them; light, rhythmic twitching is usually just your puppy “chasing squirrels” in a dream.
  • Keep the sleeping area warm, quiet, and comfy so your puppy can get stable, restful sleep.
  • Record a video if the movements seem intense or strange so a vet can see exactly what is happening.

If you ever feel unsure—especially if the movements look strong, your puppy seems distressed, or doesn’t bounce back to normal—contact a veterinarian promptly.

Information gathered from public forums or data available on the internet and portrayed here.