There's a soft mumbling noise coming from under the comforter. And a visible lump. That lump is the one making the sound, and it slowly rises to let Shiro peer out from under the covers.

Someone was nodding in and out of sleep. Looks like she just drifted back into napping mode.

Still, the girl blinks blearily at her brother, rubbing her eyes while shaking her head because no, she doesn't remember anything about room service or making any calls for it. Who does that