It was quite late, but the children were still 'wide awake'. [=not tired at all]
One moment she was sleeping soundly—the next she was wide 'awake'.
How long will it take them to 'awake to' their mistake?
(..) I'll ask someone I like. Someone cool. I've never been to this part of the castle. At least, not while awake. I sleep-walk, you see. That's why I wear shoes to bed. Harmonia nictere passus. Harmonia nictere passus. (..)2009 Harry Potter and the Half-Blood Prince