Aliasing passed_out → unconscious
Link to alias

Reason:

Same. There's other similar tags, but I think unconscious is the most common one..?

Could also alias fainted to the same bunch, since it's usually impossible to tell if someone's actually fainted... or if they've been drugged, hit with a club or whatnot.

+1, I was just about to suggest the same thing.

Firstly, we should found another tag to fulfil the main role, because:

I) Sleeping and "unnatural conscience loss" (fur to concussion, intoxication, extreme exertion etc.) probably shouldn't be treated as the same, however the term 'unconscious' technically encompasses both.

II) The term 'unconscious' also may be used to situations in which a character does something unconsciously (although this isn't so likely to happen).