Have you ever wondered why your dog sleeps so much? Have you found yourself adding up the hours your dog sleeps each day? Every time you walk into the room you find your dog sleeping. Is that normal? Believe it or not, most dogs sleep around 12 to 14 hours a day. Some breeds sleep longer than other breeds. For instance, large dogs like the Saint Bernard and the Mastiff sleep much longer than smaller dogs like the Pomeranian or Poodle. Puppies also sleep longer than adult dogs. Puppies can sleep anywhere from 18 to 20 hours a day. Senior dogs may sleep more as well. Not all dogs will sleep straight through for this long. Many will sleep a few hours, go outside to the bathroom, play with a favorite toy, eat and drink and then sleep a few more hours. Some will sleep all day and stay up at night or vice versa. For further information, talk with your Sayville, NY veterinarian.