[It nearly doesn't work, with a couple of false starts where he almost wakes back up, like he's going to jump up and fight something, not quite a nightmare but maybe close to it.
Instead the brief flutter whenever his eyes open meet Shiro's steady gaze and after what seems to take forever, he finally drops off again, saying his name quietly at least once more before sleep (or sickness, whichever you want to call it) claims him again.]