I've found Flux[1] to be very useful in stopping the constant forward-shift of my sleep schedule. Now I actually get tired at night. Perhaps it was simply over-exposure to blue light all these years...
I went all kindle | paper in bed (no more backlit things), and simultaneously also started using Flux, and it seems to have helped me actually stop working and fall sleep.
You get used to it in about three days, and then if you use the temporary-disable command to see what your monitor looked like before, it really does sear the eyes like when those nazis opened the ark...
"f.lux was created by people who care a lot about accuracy in colors. We know you want to make sure your colors are perfect so there is an option to disable f.lux for 1 hour at a time (for example, while using Photoshop). This setting returns your screen to its normal settings. In the future we plan to allow automatic disabling of f.lux when you launch certain programs. f.lux is not designed for use during advanced color work, but it's fine for layout or HTML. Currently, we don't recommend running f.lux on calibrated systems running Windows, but we expect to have a solution for this soon."