Withdrawal commonly causes insomnia and that can be a long lasting symptom dragging on for months. I personally have struggled with insomnia over the years and I am trying to use natural cures. Here are some of the things I have tried that have helped: Melatonin - Some friend recommended this supplement. This is relatively mild but I have found it works pretty well for me if my anxiety isn't too bad. If I take it regularly though it stops working after a couple of weeks. Nyquil - OK this is not very natural but it does knock me out cold. I also have a terrible time getting up the next day, I only resort to this if I'm really desperate! Chamomile tea - I find this very soothing and I do think it helps to make me a little more tired. Warm milk - I have tried this a few times but I don't think it does anything for me? General stuff - regular exercise and trying to reduce stress in the evenings always help me sleep. I'm hit or miss on these habits though! What do you guys think? Do you use anything or have any tips for beating insomnia?