A nocturne ... is usually a musical composition that is inspired by, or evocative of, the night. (Wikipedia)
It is late evening. I'm lying in bed, on my stomach, perhaps with a pillow under my chest. I may be on my laptop, in order to read, to tweet, to blog, or to play a silly game. Or I may be reading a book, though not as often anymore, or I may be working on a crossword puzzle.
I may have a radio on or - rarely - the television is providing background noise. Usually, though, the only sounds are the hum of the laptop, what few neighbor noises come through the concrete apartment walls, and the noise from the highway and the rail yard nearby. Because I live atop a bluff and have a west-facing exposure, there is usually wind. All this is not silence, but it's close, and my brain easily filters it out and passes on a sense of silence.
Being here in this place, enjoying the quiet and the soft lighting, is often the most enjoyable time of the day. No one expects much from me. The phone's unlikely to ring. E-mails that contain obligations do not come at this time of night. I am at peace, more or less, and I feel a sense of security that often eludes me at other times.
It's a struggle for me to turn out the lights, to willingly bring a close to this time of peace. If I've got work the next day, I am usually able to choose sleep at a reasonable time. If not, or if my heart or mind are burdened, I may extend my evening activities much longer than I healthily should. If I become drowsy, I keep going until I am simply longer able to do so.
For as far back as I can remember, such have been my nights. It's not a problem with sleeping, although I sometimes have that as well: it's a problem with choosing to sleep.
I see headlines from diabetes news sources suggesting that insufficient sleep may play an important role in the development of Type 2 diabetes. I know that frequent fatigue eats away at the energy available for exercise and other healthy activities.
But, late at night, none of that seems to matter very much. And so, as it always has, my nocturne plays on.