Do Dogs Sleep More When They Are Older. For instance a giant breed dog like an Irish wolfhound is considered a senior at 6 or 7 years of age while a Chihuahua might not be regarded as a senior until closer to 9 or 10. Its normal for an older dog to sleep more and for her sleep patterns to change as she ages. Depending on the dog a senior. Older dogs take a little more time to care for and this may be due to the fact that they just move a little slower.
Senior dogs need about as much sleep as puppies from 15 to 18 hours a day. Therefore hypothyroid dogs tend to sleep more. Moving around and using energy day-to-day is harder on an older dog than it is a younger adult. Most dogs enter their senior years at around 7 years old a little sooner for larger dog breeds. Sensory changes such as eyesight or hearing loss can. They begin to slow down they may gain weight more easily their senses start to dull.
Not all of that time is deep sleep however.
Not all dogs may show the same signs andor they may not show up in. Dogs do sleep more as they age. At this age all they will do is play eat and sleep. Some dogs start overreacting to things they once ignored like the garage door opening or the newspaper being delivered. Hypothyroidism is common in middle-aged and older dogs. But dogs age at different rates.