Mirtazapine
"Mirtazapine has been a life saver for me. I have had trouble falling asleep on and off over the last two and a half years mainly because I've been unhappy at work. Just recently I was on zolpidem for 2 months and then switched to mirtazapine when I realised my sleep problems weren't going to get better in the short term. A couple of years ago things were so bad that sleeping tablets didn't even work and mirtazapine was the only medication that got me to sleep. I function normally after about the first 8 days on adjusting to this tablet - day 1 I feel like a zombie but by day 3 I start to feel less like that. Just stick with it for a few days and you will adjust, is my advice. The dosage I take is 30mg or 45mg."