"i have been taking trazodone for over 10 years, i started on 100mg and went down to 50 when i tried it and found that it worked just as well. i never used to sleep at night, with trazodone i consistently sleep through and have never had to increase the dose. i stopped taking it for a few months and was ok but went back on it when i started waking up in the middle of the night. i haven&#039;t noticed any side effects, my allergies do seem to be worse at night so maybe the trazodone affects them but when my allergies are not bad i don&#039;t have any sinus problems with trazodone, i also take zyrtec at night for allergies"