Mirtazapine
"Taking 7.5mg, started one month ago. I was very nervous about taking my first dose,  but it's improved my quality of life dramatically. I sleep around 2hr after dosing, so I take it at about 8pm. I do experience some rather odd dreams! Which I find interesting rather than unpleasant, zero weight gain thus far. To anyone suffering from insomnia, don't be scared of this drug it feels like a very natural sleep/tiredness feeling at 7.5mg."