I was thinking just yesterday abt purchasing one of those lights used for seasonal affective disorder, for use in the mornings. It seems it might be a great thing for that late night spurt of activity as well. we'll see...that's not something I've heard talked about, although a fellow named Kasper has some stuff out on sleep and talks a lot abt light first thing upon awakening.
We'll see if it disturbs the going back to sleep at 11.