I just picked this Romulan up out of curiosity and when I got home, I looked it up on here and saw that it was good for bipolar disorder and depression.
I've never used any strain as medication for depression, only other issues that I have, although my doctor gave me some info on it. I have bipolar II, and my other medication helps my mood to be stable, but what I still struggle with are light bouts of depression. Well here's where Romulan really does great work. It's very unique in its ability to keep me calm and relax. There's definitely no sense of the in-your-head, anxiety/paranoid, feeling that some people, including me, dislike about certain strains.
Along with the relaxation, there's a subtle uplifting feeling, it can bring me to a sort of zen-like state, so long as that includes hunger. So for light to mild depression, I would recommend this strain.
While you may feel relaxed and have a desire to stay in bed, there's little to no traces of any sort of couch-lock. That's not to say you couldn't use Romulan as a sleep aid, it just may not be your number one choice. At the same time a lot of indicas can induce an inside your head feeling, the lack of that puts Romulan in a unique class.