Is it normal for puppies to shake in their sleep?

Puppies dream during sleep just as humans do. It is normal behavior for puppies to shake in their sleep. Puppies bark, twitch and even appear to be running in their sleep as a dream is acted out.

Puppies experience a deep stage of sleep that produces dreams. A puppy shakes during sleep as a reaction to the content of the dream. The puppy's muscles twitch and his paws move as he chases a rabbit or fetches a ball. Young puppies and older dogs tend to experience dreams more frequently, and puppies can also experience bad dreams or nightmares during sleep.