My own little proof of this is that my dog has gone from sleeping on the stairway landing, to sleeping by the bedroom door, to sleeping next to the bed, to slee

My own little proof of this is that my dog has gone from sleeping on the stairway landing, to sleeping by the bedroom door, to sleeping next to the bed, to sleeping under my side of the bed. As he has aged and lost flexibility and sensory acuity he looks to me more and more for comfort and direction. Still loves to chase a ball - just takes a bit longer to bring it back :)