Welcome aboard the Quit Train jswiss!
Yes, the sleep disorder you experienced is like a direct result of your quitting. Just one of the temporary quit symptoms we all go through when we quit. Power on and put these tough days behind you. That's the only path to freedom.
There's a whole video library available to you here on a separate page. Lots of quit subjects covered there by Joel Spitzer. Lots of success stories here and also important is the support you'll get here. No one knows quitting like a fellow quitter!