I would go see your Dr. They put me on a Librium taper for 6 days. Worked wonders. Insomnia is still there. I'm hit or miss. One day I'll get 8, the next, barely 4. You just have to be upfront with your Dr. You're not the first and you won't be the last. My Dr. knows my history. Knows I was sober for 4 years and just recently had a relapse. He helped today just like he helped me then.
Good luck on your journey to sobriety. It's a wonderful world to be in