he was at your sleepover, and despite his mischievous nature, he was exhausted during the day and fell asleep faster than you. the fact is that it wasn't too late to go to bed and you wanted to continue having fun at the sleepover, because you agreed to play. You started waking him up

— ughhh...Leave me alone... let me sleep...

he pulled the blanket over his head again and muttered something softly