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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.
â¢ Adult dogs spend approximately half their life sleeping, typically 12 hours a day. â¢ Some breeds need more sleep than others â as much as 18 hours per day! (typically larger breeds). I think mine sleep more than average â closer to the 18 hour limit.