Stefan shakes off his own disorientation in order to take control of River. He pulls her back from the bulkhead, pinning her legs with one hand flat against both her knees - he normally doesn't use that superhuman strength against others, but he doesn't want her to hurt herself with that kicking she's doing - and holding her steady with one hand at her shoulder.
i try to sleep, they're wide awake, they won't let me alone;
"River," he says. "River, calm down. It's me. It's Stefan. It's okay. You're okay."