
Dogs may look adorable when they snooze, but their sleeping habits actually hold fascinating clues on how living with humans has shaped canine behaviour. The sleep-wake patterns of the dog can also serve as a useful model for human sleep and wellbeing research.
Domestic dogs have largely diurnal sleeping habits (awake during the day, asleep at night), aligning themselves to the lifestyle of their owners. Most of their sleep happens during the night, between the hours of 9pm and 6am. Unlike humans, however, dogs have frequent bouts of sleeping during the daytime, particularly in the afternoon.