Wow. This looks really nice. The pacing of everything was quite slow, so I think it would have been nice if the recurring walking animation were a bit slower as well. I also thought the girl could have shown a bit more emotion when rubbing the lemon into her cut. Short of that, this is smooth and attractive.
That said, the concept itself doesn't appear to be too original (perhaps I'm misreading it.) So the girl has some kind of ability (or disability) that causes her to see something (which may or may not be real) if she falls asleep. Then she falls asleep. Okay. We don't really get an idea of why anything happens or why it matters.