Tenshi snapped her fingers, creating a roughly person-sized floating rock next to the window.
"Just stomp on it twice to make it go up or down, it'll stop in front of your window. It'll work even when I sleep, so don't worry, you don't have to wait for me to check for you."
She'd probably forget to, anyway, she was not the most responsible person.
Nobody said how they work, so ruling it does work like that is ok. It's magic!
Tenshi snapped her fingers, creating a roughly person-sized floating rock next to the window.
"Just stomp on it twice to make it go up or down, it'll stop in front of your window. It'll work even when I sleep, so don't worry, you don't have to wait for me to check for you."
She'd probably forget to, anyway, she was not the most responsible person.