I'm currently goin through the same problem. I get home from work (3rd shift) around 9:15 am, lay down, actually get to sleep around 9:45, wake up a little after 10. I'll get myself to fall back asleep, and wake up about a quarter to 11, then at 11:30, and so forth and so on. Generally, when it gets to be around 2pm, I just give up on the whole sleep thing and sit around the house. I'm getting to the point where nothing seems real now, kind of a tired yet comfortably numb feeling. I can only hope I get back into a regular sleep habit sometime soon.