Hmm, interesting article from New York Times.
I used to use lightboxes 13 years ago, and it worked.
Then I forget to do it, then forgot how to do it. As happens with many things. (Faith, for instance, or prayer.)
After reading this, I dug out my old lightboxes, started using them the moment I woke up, and am indeed waking up earlier, and refreshed.
Yay. Jogging helps too. I almost never sleep badly when I have gone for my 30 minute jog. Especially if I have also done my 30 minutes of yoga before going to sleep.