Hi Erin,
Re: Amitriptylin, I take it for a couple of my mysterious symptoms -- initially, I started out low-dose (10mg before bedtime) for CPM (chronic pain management). However, my doctor upped the amount to 25mg, and now I also reap from its usage re: sleep and possibly as a preventative to full-blown depression. And FYI - I also read that it helps with tons of other symptoms, ranging from bedwetting to PMS to eating disorder to premature ejaculation to migraine headaches, etc.! It's also OK for long-term use, I've been told...
Good luck with the insomnia, and whatever else is on your plate.