I have never suffered from depression (am very grateful to be able to say) but I have had phases of being a terrible sleeper. On the days after a bad nights sleep = I feel down, terrible, tearful sometimes. When I've slept well = I feel fine.
Isn't it a chicken and egg situation? Surely some people get depressed after a time because they don't sleep well. Rather than you are depressed and THEREFORE you don't sleep well?
Just curious. Not in denial about depression; I really don't feel I am depressed. But sometimes I just can't bloody sleep! And that's a problem I'd like to cure without going on to ADs or anything.