Trying to take advantage of insomnia

For many people, insomnia involves not being able to get to sleep. Mine, when it manifests is in the form of early morning awakening. Its incidence comes in waves. Sometimes I have no problem for weeks at a time. Then there will be a period when I do wake up at 3 am or so, but fall back asleep almost immediately. Then comes a period, such as the one I'm going through now, when I wake up at 4 or 4:30 am or so. My usual wake time is 5:30.

So, this week, I've been hitting the writing chair way e...