#sleepiness

An incredibly sleep-deprived character, in desperate need of sleep, to the point they keep involuntarily nodding off, but they're in this state because up 'til now they absolutely couldn't allow themself to sleep- because they had to monitor or care for another character, because they had to keep watch or wait for a signal or message, because they had to keep moving or succumb to the cold, because they were in a precarious situation where if they fell asleep they might lose their grip or balance, whatever the reason- so every time they begin to fall asleep they jolt awake in a panic, forgetting it's alright to do so now.