Dogs still sleep for a long time, but are using some fractions of time to sleep, so try not to disturb the dog at the time of sleep. The dog sleeps in a position that always faces its head outside, such as the direction of the courtyard gate, and can always detect various changes outside. This characteristic has become the dog’s ability to watch and guard the house. Sleeping is an essential form of rest to regain strength and maintain health. In the wild, dogs were nocturnal animals, sleeping during the day and moving at night. After being domesticated by human beings, they basically keep the same routine as human beings, changing to active during the day and sleeping at night. However, unlike humans, dogs do not sleep from night to morning, and they are always alert when they sleep. It is thought that dogs stop responding to smells completely while sleeping, but are particularly sensitive to sound.
