Why Is Puppy Breathing Fast While Sleeping?

Puppies, probably because they are processing so many new experiences, are likely to spend more time in REM than adult dogs. For these puppers, it's completely normal to notice quick breathing while they sleep.

Do puppies breathe fast when sleeping?

Some puppies may also have irregular breathing or faster breathing when they are sleeping and dreaming. This is also normal and nothing to worry about. For instance, during the REM (rapid eye movement) stage of sleep, brain waves are faster and more irregular.

Why is my puppy breathing so fast?

Rapid breathing in dogs may simply be down to excitement or exercise. Dogs may also pant when they're in fear, stressed or hot. Panting is one of the most important ways a dog thermoregulates. But beware, heavy or rapid breathing is an early sign of heat stroke and should be closely monitored.