Noah gave her a smile that was sincere but also tinged with worry. Although unlike his walk over, his mind was no longer preoccupied with concern about Sylar's proximity or potential discovery of Emma's abilities but rather for Emma herself. She looked as though she didn't feel well. Strained, he supposed, was a good term. And the dark of the apartment only added credence to his worry for her.
Stepping inside, he glanced briefly around in order to take stock of the situation. Being constantly aware of his surroundings had saved his life on more than one occasion back home and, while some of his habits had fallen to the wayside upon arriving in Colligo, he doubted that was one that would ever completely leave him. Once he realized that the layout was identical to his own apartment, though, he relaxed ever so slightly and allowed his gaze to flicker back to the girl in front of him.
"You don't have to keep thanking me," he told her, the smile still in place as he stuffed his hands inside the pockets of his jeans. "Like I said before, if I can be of some help I definitely don't mind."
He wasn't sure quite what he felt at the admission that she had never had a good night of sleep. He understood nightmares and had been subject to quite his fair share of sleepless nights over the years but, much like when he had first learned that his grandmother didn't sleep very well due to her power, he knew that this was something entirely different than what he was used to. There was the typical feeling of... not necessarily pity, but not quite sorrow either. Rather a strange mixture of the two emotions rolled into one. He ignored it, though, and focused on correcting the problem as best he could.
"I'm not sure how long I'll be able to stop your ability," he admitted after a second. He shuffled from one foot to the next a bit awkwardly at the statement but knew he owed it to her to be honest. "Now that I know what to expect it shouldn't bowl me over like the last time but..." He gave a half-shrug and met her gaze directly with a partial frown aimed at his own inability to offer a guarantee.