Outside of Noah's view, a nurse station was occupied by one sleepy nurse. She was also a hunter on paper, but she was more dedicated to keeping her colleagues safe after and during battle. She had been watching Alessa and the others for an entire night that she was dozing now.
The warm sunlight was on her seat, and so her sunbathing had made her feel very sleepy. It's just that she felt like someone had already awakened. The heartbeats she could hear had changed, telling her that one was already out of slumber.
It even spiked since the person must have been horrified by the view. The nurse got up from her seat and stretched out before checking who must have gone out of bed. Bad person, couldn't they tell that they needed to remain on their beds to rest?