To give some context; I have been experiencing what I think it could be called sleep maintenance insomnia.

I exercise every day, am in a good shape, watch my diet (by trying to eat the healthiest stuff I can get my hands on), and also try to have good sleep hygiene (I tend to go to sleep everyday at 11:00 p.m.). However, I regularly (almost every day of the week) wake up like 3, 4 or 5 a.m. (it depends) and cant get back to sleep. This results on me feeling like a zombie, and being unable to get done intellectual tasks (4 months aprox. without approaching coding, the way I used to).

I can deal with the physical exhaustion, but feeling my intellectual capacity diminished is becoming frustrating (there are days I barely come up with something done!).

BTW, I have read and heard about melatonin; could anyone recommend me taking it for the sake of getting rid of this problem?

Any recommendations would be extremely appreciated.