Dude.... 1am and you#re posting on the internet. No wonder you can't wind down. Put all the tech away, grab a magazine or book or something (relaxing, not pr0n you filthy bastard) and read that with a nice cup of tea. I suffer from it occasionally too, for me the best solution is to wind down as much as I can in bed, no telly, no radio, n internet, nothing, and when the time is right, I usually nod off anyways.
Start drinking again and imma come kick your ass old man.