Dogs generally do sleep through the night, but their sleeping patterns differ from humans. Most adult dogs sleep around 6 to 8 hours overnight, similar to human nighttime sleep, and then take naps throughout the day totaling up to 16 hours of sleep daily. Dogs are polyphasic sleepers, meaning they sleep multiple times in a 24-hour period rather than one long stretch like humans. Puppies and senior dogs tend to sleep more, with puppies possibly sleeping up to 20 hours per day, and seniors also napping frequently. The ability of a dog to sleep through the night can depend on factors such as age, breed, health, and their schedule, especially bathroom needs. For many dogs, sleeping through the night without needing to get up is normal and healthy, though some might wake up for bathroom breaks or if they have behavioral changes suggesting stress or other issues.