insomnia
"I have struggled mightily with insomnia due to anxiety.  Been on 7.5 mg for just over a year, and have made significant progress in that time.  Feel very tired normally within an hour or so of taking it and generally have slept well with far fewer exceptions.  Not sure it really does anything for anxiety/depression.  But I also am taking escitalopram during the day.  Would certainly recommend mirtazapine for anyone struggling with insomnia."