Chan had a habit of falling asleep wherever he got comfortable and right now, he was asleep in class, his head resting on the desk

it was close to the end of the class period and Chan hadn't woken up yet, the teacher was looking at Chan, obviously getting suspicious of him. You took notice of it so you started to shake his shoulder or tap him, but it still wasn't working though "Chan, wake up, the period is almost over." you said, and when he heard your voice, he lifted his head and looked at you before leaning his head on your shoulder, he was still sleepy