We're talking about "Possibly" having those things because he could be eating and/or sleeping whenever Dooku left the training ground on that period and he probably could sleep in that mountain, somehow, just don't eat.
We don't get a definitive statement or something like "he did not eat while climbing the mountain" or something like that.
And reading both Body Control and Self-Sustenance pages, i'm really thinking that we only have enough argument to base "Possibly Self-Sustenance", because, again, we don't have a statement like "Yoda fought against sleep for almost a month" or "Yoda forced himself up against that mountain despite lacking food for a week", so nothing indicating body control exists, so far (if it appears amidst those 40+ books that i'm trying to read, i'll add it to the sandbox instantly);