Sobergirl that is awesome, sorry you are now having a bit of insomnia, but as you are finding out things keep getting better and better overall the longer you are sober.
A miracle for sure.
When ever I want to see a miracle I do one of 2 things, I either go to an AA meeting or I look in the mirror!!! For someone like me after 40 years of drinking to go over 19 months sober is a miracle and I owe it all to the fellowship of AA and the 12 steps of AA which led me to a HP of my understanding.