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Why does my cat twitch in its sleep?

Small twitches during sleep are usually normal REM activityFact

Whisker twitches, ear flicks, paw or leg paddling and quiet noises while your cat is asleep are typical signs of REM sleep and are usually completely normal. The key distinction is that these happen while the cat is asleep and are brief. Repeated jerking while awake, or an episode with stiffening, loss of awareness, drooling or collapse, is different and needs a vet.

Applies to: Applies to a sleeping cat showing brief facial, ear, paw or tail movements. It does NOT cover twitching or jerking while the cat is awake, which is a separate, urgent situation.

Steps

Twitching in sleep is normal REM behaviourFact
  • During REM sleep cats may twitch their whiskers, flick their ears, move their paws or legs, and make small noises.
  • These sleep movements are usually completely normal and reflect nervous-system activity during sleep.
  • Twitching this way is a sign your cat is likely dreaming, not in distress.
  • Movements are brief and your cat stays asleep throughout.
Where twitching fits in the sleep cycleFact
  • Cats cycle between light sleep and short bouts of deep sleep.
  • Deep sleep typically lasts only about 5-7 minutes, and this is when dreaming and twitching are most likely.
  • Around a quarter of a cat's total sleeping time is spent in this very deep sleep.
  • Younger cats and kittens often twitch more than older, calmer sleepers.
Signs it may be a seizure, not a dreamProfessional guidance
  • A seizing cat may suddenly collapse and lose consciousness, tremble or jerk, make noises, clamp their jaw, pass urine or faeces, or twitch their eyes or face.
  • Unlike sleep twitches, these episodes can happen while awake and the cat cannot be roused or is disoriented afterwards.
  • Call your vet if a seizure lasts over two minutes or if your cat has more than one in 24 hours.
  • Do not try to restrain or medicate the cat; note the time and what you saw to describe to your vet.

Normal vs keep-watching

Normal: Brief whisker, ear, paw or tail twitches and quiet noises while your cat is fully asleep, stopping when they wake naturally.

Keep watching: Note whether the movement happens only during sleep or also while awake, how long it lasts, and whether your cat responds normally when you gently say their name.

When to contact a vet. Contact a vet promptly if your cat twitches or jerks while awake, stiffens, drools, loses awareness, paddles uncontrollably or collapses. Treat a seizure lasting over two minutes, or more than one in 24 hours, as an emergency.

What changes this answer

  • Whether the cat is asleep or awake during the movement
  • Whether there is stiffening, drooling, or loss of awareness
  • How long the episode lasts and whether the cat recovers normally
  • The cat's age (kittens twitch more in sleep)

Common mistakes

  • Assuming any twitching is always a seizure and panicking over normal REM sleep
  • Assuming a genuine awake seizure is 'just a bad dream' and delaying vet care
  • Trying to wake or restrain a cat mid-episode
  • Giving human or leftover medication instead of calling a vet

Sources

Real questions cat owners ask

  • Is it normal for my cat to twitch and paddle its paws while asleep?
  • How can I tell a sleep twitch from a seizure?
  • Should I wake my cat if it is twitching a lot?
Log any twitching that happens while the cat is awake, plus date, duration and what you saw, to show your vet. Set up your Cat Passport.

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