Hmmmm..... I can only speak from my experience. I have bipolar and the only times I went to the hospital were during manic/psychotic periods and one suicide attempt.

I dont know how deep you are into depression, but I certainly wish I had checked for myself into treatment for depression and suicide ideation.

Here in the US each hospitals have different psyche wards were you can spend any where from a few days to a year.

So, I cant answer your question, but if you are on the edge of a crisis it may be a good idea.