Practical comfort also plays a part. Clothes offer warmth, softness, and a cozy surface that feels inviting. For dogs spending time alone, resting on clothing may help ease mild boredom or provide a sense of companionship. In some cases, pets that have experienced previous insecurity may gravitate toward personal items as a way to reinforce feelings of safety and belonging. Observing the context—such as recent schedule changes or environmental stressors—can help owners better understand the motivation behind the behavior.In most situations, sleeping on clothing is harmless and simply reflects a strong bond between pet and owner. It becomes a concern only if accompanied by destructive chewing or persistent anxiety. Otherwise, it is often a quiet sign of trust and affection. When your dog chooses your shirt as a pillow, it may be their way of staying close—even when you’re not in the room.