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Again, ever sleep expert and doctor I have ever spoken to recommends that you not look at a bright screen (TV or computer screen) for an hour before bed if you genuinely have problems falling asleep. This is particularly true for anyone attempting to use light therapy to regulate their sleep.
I am getting rather annoyed with people that cry "insomnia", but really just aren't regulating their sleep or it occasionally takes them half an hour to fall asleep rather than five minutes
The programmer at work is in this boat with the two ladies.
You could givePzizza try. It costs money and seems to employ a bit of pseudoscience, (I'm no expert, but NLP and "bineural beats" are bunk, right?) but people swear by it. I gave it a shot a while back for a nap, and it worked incredibly well.