Sleep Patterns

In Brain Rules, and other publications, we now know that people fall into various sleep patterns: "larks," who wake and are most active in early in the morning; "night-owls," who are most active at night; and the unnamed majority, who keep "normal" hours.

In an internet search, I happened to find an introvert night owl who now had the option to take meds to sleep at the same times her husband and children slept, but wanted to keep her late-night awake time as her "private time": free to write, meditate, and observe the quiet night.

It sounds like a nice idea for a short story. Does she conform to normal hours, or stay a night-owl?