I take trazodone for sleep though not every night but it takes 50-100 mg to get me to sleep...but yeah I have gotten sort of a hang over feeling from it, not really so much a headache but either way I find some coffee or caffeine containing tea seems to help.

Trazodone is not the only sleep med though, so if it causes you problems then perhaps your pdoc would consider a different one. anti-histimines work for some people without much trouble....but for me they are essentially useless and more make me irritable than anything.