He didn't answer out loud but with the slightest nod, because it's not something he means to make Peter rush. If he sets him free, it'll be because he wants Sylar to be free, will accept the consequences of what that means, and he had promised to fix him. He couldn't do that if he made his decisions for him.

So he let Peter recoil his hand, and he looked right back, his own eyes part lidden, and he raised his own abandoned hand up from the space between them, and brushed Peter's drying hair back out of his eyes, not forcing himself to stop halfway this time.

"You've had a difficult day, I don't blame you for wanting to sleep it off." He drew his hand back, still without even a flicker of a smile. "If you feel short of breath wake me up."