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The average dog sleeps for about 12 to 14 hours per 24-hour cycle. Thatâs just the beginning, though. Puppies, who expend a lot of energy exploring and learning may need as much as 18 to 20 hours.ne theory: Unlike humans who generally stay up all day and then sleep for one long stretch at night, spending as much as 25 percent of their sleep in Rapid Eye Movement (REM) Click to learn more sleep, dogsâ shorter sleep stints mean just about 10 percent of their snoozing is REM.
Puppies and senior dogs tend to sleep more than dogs in the prime of their lives. And dogs who are very active, such as those who herd sheep, will sleep less than a sedentary pet. Most dogs sleep somewhere between 12 and 18 hours each day. If they're bored, they may sleep longer simply to escape the tedium. Larger dogs are likely to sleep more than smaller dogs because the bigger bodies have a higher need for the physical restoration provided by sleep.