Roughly 2 years ago I fell into a depression because of debilitating anxiety. The anxiety would keep me awake through the night. Low and behold the whole next day the depression and anxiety would be gone. I wouldn't be overly tired either, so the trade off was fine. This would happen roughly once or twice a week. Always, the next day following a sleepless night I pretty much felt 'normal'.

Eventually I swallowed my pride and went to the doctor and was prescribed an SSRI & NDRI. I was too afraid to take the SSRI(with anxiety can some OCD, I was obsessed for awhile I was becoming schizophrenic) so only took the NDRI(Wellbutrin, generic). Eventually it pulled me out of my depression and I was began sleeping normally again. I weened off the NDRI about 6 months later.

Luckily the depression hasn't came back, in full force. I go through cycles of what I would say "mini-depression" every once awhile, but I am able to push through and conquer. The medicine was a must for me to get through my depression and get back on a normal sleep cycle. I don't miss the sleepless nights at all, but they sure helped me stay somewhat sane during those rough times.