I didn't sleep much days 1-5. Day 6 to about 2 weeks slept but woke up a lot covered in sweat and had nightmares. After that, and for the last 5 months, I've slept like a big pile of rocks. I sleep the way I did when I was a kid, like 10 hours of solid sleep if I don't set the alarm. It's crazy and wonderful. All day I'm wide awake and on the go. When I go to bed, I read for 5 minutes, and I'm falling asleep.
Stick with your sobriety and soon you'll be enjoying sweet, restful sleep!