Have you thought about seeing your doctor about the insomnia. I have been having similar problem but not every night. I lay awake for hours and when I do doze I wake up every hour or so and can't stop thinking about R & D.
I had a few sleeping pills my dr had prescribed for a previous problem that I didn't use all of and so I used them a few night and it allowed me to go to sleep and sleep through the night. I told my C about it and said I worried about getting more because they are habit forming and she said that to get through this time I need to get sleep and take care of myself and there is nothing wrong with taking some medication to help. And as far as the habit forming unless a year from now I can't sleep without them I wouldn't worry about it.
I have an appointment with my Dr. schedule do get some more.
Me-38 W-44 D8 & D6 together '95, Wed '97, Bomb 11/18/08 Still in same house