Stick out the insomnia, you'll be sleeping like a log soon enough on your own. Its 1000 times better than any drunken pass out bs. Fact is, when I was drinking all the time and took a night off I could never sleep, 3-4 hours max. After I stopped drinking, I had that same insomnia for around 2-weeks? Then it all got better, I get a full 8-hours every night and wake up feeling great. Your eating/digestive habits improve too...its cool and a nice pay off for the first jaunt through getting sober.
Hang in there