That's why you need to try to get something to get your mind off of it. When I was living alone, the nights were the worst. I would surf the web and read until I was so tired that I couldn't stay awake any longer. I tried to do that rather than have a drink or use any other substitute.
Maybe you can load some meditative music onto your ipod and sleep with the headphones on.
I also posted something in the Midlife Crisis forum if you want to see if your W is suffering from an MLC, which I think she is at times.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.