Hmmm, I might give that a go at work.
Though I’m no expert by any means I have done some research into insomnia treatments for a university assignment (see the link in my signature), and have applied some of the techniques which I found to be quite effective. Basically regular exercise, good diet (plenty of fruit and veg), regular sleep schedules, and even meditation can facilitate a good nights sleep. All of the above I personally practice with diligence every day, so I can tell you it works! On a side note, I haven’t had a headache in about a year either…
As somebody already said, spending too much time in bed if you can’t get to sleep is a bad idea, as you build up an association with stress/worry and wakefulness as opposed to sleep and relaxation. A better idea would be to get up and watch tv for half hour. In any case, for insomnia a multifaceted approach is most effective - don’t try just changing one variable in your life, change them all. If you’re committed you would see drastic improvements by adding 30 minutes of exercise, a bowl of vegetables, quitting caffeine, and practicing 20 minutes of meditation everday.
BTW Garlic, I’m in Sydney too!