A close-up view of a sleeping senior black dog looking at the camera as it lies on a home floor

senior sleeping dog tired pet laying floor sleepy dog face senior dog headshot headshot of a sleepy dog aged signs gray hair sign of aging series domestic animals lying down mammal napping pets relaxation resting sleeping old senior animal closeup cute focus on foreground canine best friend labrador black labrador retriever black retriever lie down laying down elderly animal senior pet cuteness old pet old doggy old labrador black doggy doggy nose closeup view close up angle close up perspective headshot sleepy eyes tired eyes tired relaxed age signs narrow focus looking at camera