I have been on lamotrigine for few months now and it has helped tremendously. Since around 3 weeks I have been having issues with sleep. I am mostly waking up a lot at night and, having troubles falling asleep and waking up early. 
It looks like a start of an episode, but apart from being tired and a bit low I am generally ok.
Anyone can relate? How did you manage sleep issues while otherwise ok? Tips and tricks?