Today he stayed on his Place for 2 hours today with only 2 mistakes. I was able to walk out of the room and enter again without a problem. He got up when his buddy, Ace, trotted into the room and again after he had fallen asleep and woken up forgetting he was in a command. Both times I was able to just correct him from where I was sitting and I did not need to get up to put him back on his bed.
Right now he is hiding his bone under one of the mats in the living room. Ace is watching him do this so it isn't a very good hiding job but Artex gets points for effort. Good job, buddy!