Hogwarts: I'm Truly a Model Wizard - Chapter 684: The Battle of the Department of Mysteries

... rds. He had barely been asleep for ten minutes before being abruptly woken up.

"Fred, George, you'd better have a good explanation," he muttered, sitting up and rubbing his face in an attempt to shake off his grogginess.

It was surprising enough to see the Weasley twins in the Hufflepuff dormitory. As for Mikel and Ryan, their beds were conspicuously empty—no doubt they were still in the common room playing wizard chess, having announced their intention to pull an all-nighter.