Su Sheng was physically exhausted as well, the battle with Lan Yuling had nearly drained him. Despite his severe injuries, his performance was actually disrupted by Xue Li.
But now, with his eyes closed, he couldn't fall asleep for the time being, likely because he had overexerted his brain simulating the Creation Sword Technique and needed to slow down.
In the darkness, he didn't need to look to know the layout of the room; he could tell by listening. After switching off the lights, Jasmine Flower quietly approached the bed, took off her shoes, and lay down, but she was turned to one side, probably looking in his direction?
Xue Li remained motionless. She hadn't even completed her bedtime routine, but she couldn't disturb Su Sheng's rest now. Yet, without changing her clothes, she couldn't sleep at all.
After about ten minutes, when she heard Su Sheng's breathing become steady, she assumed he had fallen asleep.