"Thank you," she murmured, closing her eyes as she did so. It probably wouldn't matter to Hermione if Ron turned the light off after she had gone to sleep, but for now, she just wanted to know that she could see if she opened her eyes.
Barely hearing him as Ron told her to get some rest, she was seconds away from doing just that. Though everything she had learned that evening was still going to be waiting for her in the morning.