Walker didn't even realize he had fallen asleep. When he woke up he was certain that it had been a few hours. But he was surprised that he found himself with a new skill at this time. It wasn't a skill that would break the world or that would shock everyone. It was just a useful skill that came from the fact that he and the rest of the group had been pushing forward and resting for shorter times. He was sure the others could learn it too.
'The skill, trained resting has been learned. Every being that requires sleep can learn this skill.
Trained resting- passive
This skill can be learned through controlling the times the user rests. It is also gained through perseverance to abstain from resting. Due to this balance, the way that mana flows is enhanced when resisting. Therefore, the body, mind, and mana are all better recovered. There is also a better sense of refreshment from resting.