Physical closeness during rest is a common behavior in canines, often stemming from a combination of instinctual drives and learned associations. This inclination to seek contact while sleeping can be attributed to the dog’s pack ancestry and its current relationship with its owner.
Proximity provides a sense of security, warmth, and comfort. In ancestral packs, sleeping together offered increased protection from predators and assistance in maintaining body temperature. Modern domestic dogs retain these instincts, and replicating that closeness with their human companions can reinforce feelings of safety and well-being. Furthermore, the act of seeking closeness can be a display of affection and trust, strengthening the bond between the dog and its owner.