I sort of have the same problem on and off. Last few nights I haven't gotten to bed 'til like 4am or so, then the cycle repeats...
I have found, though, that if you really need to get to sleep and have some great therapeutic dreams to help regain some sanity and clarity, a touch of melatonin a half hour before you go to bed works wonders.
Also, try and stay away from the coffee, certainly within the previous 12 hours before you want to catch some Zzzzzzzzzzz's!
Melatonin does the trick for me too. My mom suggested I try it, and at first I thought it would work just as well as all the other things she's suggested I try over the years, like valerian and herbal tea and so on… but no, one 5mg melatonin pill at bedtime really does the trick nine times out of ten. Perhaps my body is not making this stuff properly on its own.
Interesting. I'll check it out. Thanks!