I was originally prescribed it for anxiety due to a health threat. I then began relying on it for sleep and both my gp and sleep Dr recommended getting off it. Benzodiazepines wreak havoc with your brain long term. I wanted to be off it.
I now take a very low dose of mirtazapine which has addressed my sleeping issues.

It stopped working (brought on depression, insomnia, and far worse anxiety than that originally prescribed for, also I can see some cognitive impact, and I feel 'crappy' all the time). After some pretty thorough research from trusted pharmacological sources, I also have a good understanding now what this drug does to the body and brain. Unfortunately neither my GP nor psychiatrist gave me any of this information, and 'weren't concerned' with continuing to take this for the foreseeable future, and continuing to up the dose (I am no longer seeing either of those practitioners).