Liam was by no means exhausted. Three weeks of complete alchemical immersion might have been his limit in the past, but the branching stage was proving its worth now.
Be it physically or mentally, Liam was fine. There was some tiredness in the back of his mind, but nothing he couldn't endure. Also, starting to concoct right after the breakthrough had likely played a role there.
Liam had planned to sleep simply because he didn't know what to expect from the Dark Heaven Tribe. As far as he knew, two angry branching experts could be waiting for him, and one was high-stage.
That confrontation couldn't allow variables, and tiredness, no matter how slight, was quite easy to solve.
The mountain had also taught Liam to sleep in any location and predicament. He had even done so before facing the breakthrough, but he just couldn't now.
