"Morris awoke, soured by the long afternoon sleep."

The afternoon sleep. Why so souring?

Evening is not a time to wake up to. It may be why. Evening is a time for landing in after all day. It is a time for thinking about ending, and you think about ending and the dark and eating, maybe, and having the turn on the lights for a few hours to do the reading or the dishes. Evening.

The afternoon sleep should just be generous and let the sleeper go on to the next day. There is no beginning to the dark.