There was always a brief calculation at times like these, the probability that Cassian would work through it and go back to sleep, or whether the quality of sleep wasn't worth it to let him try, and this seemed to be one of the latter.

Which was why he detached from the charging station to move closer, settling into waking Cassian up, it was a simple alarm, three tones, a pause, and three again, quiet enough not to wake anyone else up, steady enough to break through all but the worst of the dreams, and not urgent enough to startle him awake which was the most important part, really. Startled-awake flailing hadn't ever done Kay any damage, but there had been split knuckles at the least on Cassian's side of things once or twice, before they worked out the current system.