Raizen didn't sleep.
He lay in bed with his eyes open and watched the ceiling change colour as the night gave way to morning. The cloud glow shifted from the deep white of the second day's peak toward something thinner, paler, the luminescence beginning its slow retreat as the second of the three-day phenomenon wound down. Through the window, the hole in the sky was visible - a perfect circle of darkness that would be blue again in an hour when the sun climbed high enough to fill it.
His mind wouldn't stop. Not racing - he was too tired for racing. Just... running. A low, continuous process that cycled through the same set of inputs and refused to produce a conclusion.
