Re: Please help me Day/Night reversal
My laptop is about to die, so I'll make this short and sweet. From your description, you have Delayed Sleep Phase Syndrome (DSPS). A lot of people will say it's insomnia, but don't listen to them. I know exactly what you're going through (I have DSPS and OSA). The thing that set me off was the sleeping pills not working. It's a matter of melatonin being released to your system too late in the day, in conjunction with your circadian rhythm. Sleeping pills only work if your body wants to go to sleep-ie, melatonin has begun to release into your brain.
Check up on the **** page (just search for DSPS on ****). It's a very good resource. The best methods of treatment are light therapy (sitting in front of a light when you wake up) or chronotherapy (forcing yourself to stay awake longer and longer each night until you approach normal, which it sounds like you've already tried--on a side note, in reading your original post, your tried advancing your sleep schedule-going to sleep EARLIER. This will usually not work. Try staying up later, like an all-nighter, only shorter).
I'm done. Hope that helps.