Amitriptyline
"I stopped sleeping totally at some point in my life and after a lot of struggle my doctor put me on amitriptyline. I hated the thought of being on a psychotic drug but with my body clearly denying me sleep, I had no choice. 

Amitriptyline felt like a miracle. My first night, I slept a deep volume of dreamless sleep. My eyes wouldn't even open. Aside from having a dry mouth and having a really irritating taste in my mouth, it was perfect. 

Four years down the line, I am still on amitriptyline. The 50mg dosage works well for me.  I have increased dosage and reduced it over the years but 50mg has remained my regular dose"