You are so exhausted you fail to move.
Anks [report]: Sleeping
You start concentrating on the skill.
You are prepared to do the skill.
You don't quite feel like camping at the moment.

But, but.... if I'm so exhausted I fail to move, why does that not shorten the
times between camp attempts? I get why -hp and why skill-originated -ep
doesn't but running yourself ragged until you get -100EP and 'so exhausted'
messaged should mean you can camp! So there. (Or at least, would make this
quest easier.)