Riley has had full run at night since about 9-months old....
Before that, I had him in an x-pen right beside my bed.
He is actually usually ready to go to bed, before Me. He will sit in
the living room staring at me and will start to whine.....
I go to sleep with him on the bed and wake with him still on the bed. He is peepee pad trained so occassionally he will use them in the middle of the night.
He doesn't have full run of the house, just yet, during the day, when I am at work. I am thinking that starting Monday I will give him full run of my bedroom, to start with.