Planting a Couch Potato

I woke up a little early this morning after I heard a tiny cough outside my door. I figured Colter was up early, so I might as well join him. I peeked out of my bedroom and saw this, Colter asleep on the couch...again. My first thought was that he had another accident. I woke him and asked him why he was on the couch, and got the same answer as last time, "my bed was uncomfortable."
"Did you have an accident?"
"No, I said my bed was a little uncomfortable. I got up to go to the bathroom and came out here."
No wet clothes, no wet bed. So, I dunno. Maybe he just likes the couch.
I asked him again at supper, trying to trick him to admitting it, "Did you have an accident in the middle of the night last night?"
"No, but I did at school. I slept right through having to go potty." (this I knew)
"Well why did you go out on the couch last night, then?"
"I don't know. I just wanted to try something different."