look into DSPD if drugs dont help much.
one night i took a whole bottle of tylenol pm, what was left of my temazepam, all the booze in the house, and i dont even remember what else because i couldnt sleep. this was after i had about five hours of sleep in three days, and after i saw a doctor to get help. doctors dont know shit about sleeping, even if you do all there tests and shit, there still going to jam drugs in your face. then there going try different ones cause those didnt work, then different "combinations" of shit that also dosnt work. DSPD is way under diagnosed because no drug (melatonin is somewhat effective) will help it, so no drug company is pushing it as "the new disease"
do you think any doctor ever heard of restless leg syndrome before they had a drug to treat it ?, fuck no, they just ignored it and called it insomnia or a mental disorder even though it was discovered to be its own disease in 1945.
most of this shit has no treatment yet, but with the drug companies funding all the research, i would bet the treatment will be drugs, lots of them.
if you think you have DSPD, use melatonin to try and regulate things, if your delay is severe (more then 3 hours) try staying up all night on the weekends, or work swingshift if you can. taking Ambien or any other sleeping pill when you have DSPD is like getting shit faced at 3:00 in the afternoon, if you want to sleep, you would have to take so much you pass the fuck out, and thats not the same as actually sleeping.
i found out about DSPD by looking up sleep disorders on wiki there is whole bunch of them that doctors dont know or care about, you should look into them. loading up on stimulates and staying up on the weekend helped me the most, making sure my alarm went off the same time everyday helped to, i dont know why, might be conditioning or something. also some studies find that placebo works almost as well as the sleeping pill over time, the act of taking it makes you sleepy.