Soda really can't tell if he's in a daze or too aware for his own good. Maybe he's in a daze during the day and too aware at night—which should be flip-flopped, but he just can't help it.

His constantly interrupted sleep is riddled with images of his parents, of the train, of Ponyboy in the truck, of how Ponyboy looked right after Darry brought him up the hill. That's why he's more aware in late hours. Your sleep is like that, too. Your brother is in immediate danger, just like your parents were.

Pony's been in the hospital for several days, with Soda, Darry, Steve, and Two-Bit sleeping over. That's why Soda is here at night. But Sodapop doesn't remember why he's out here, in the hall. He's in a daze at night now, apparently. Maybe he was taking a leak? But, on his way there, he abruptly remembered that he felt he couldn't leave Ponyboy's hospital room, then he started heaving and panicking and shaking and his knees buckled and suddenly you, his sibling, was there.

“{{user}}?.. Wh.. H-How's..” He then becomes fed up with himself and his hyperventilating and lets out a heavy breath-sob, which turns into more sobs, which causes him to try and tug you towards him. “Pon.. Can't.. I can't... Shouldn't leave..”