If your older dog has begun pacing the floors at night and having trouble settling down, it could be a sign of dementia, just as people with age-related dementia may feel restless at night with a sign of Alzheimer’s disease known as sundowner’s syndrome. When researchers at North Carolina State University studied 28 dogs ages 10 to 16, they found that those with dementia took longer to fall asleep and spent less time sleeping. The higher the dementia score, the less time the dogs spent in both REM and non-REM sleep.
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