I've always had a hard time sleeping. Lately I've been using melatonin and while it does help me fall asleep, I'm still waking up between 430 and 630 (I work second shift, so this isn't ok). A couple of the articles I read online said valerian can possibly improve quality of sleep (aka not just decreasing sleep latency) after being taken consistently for a few weeks. Any personal experiences?

Everything the light touches is my kingdom.