My partner suffers from depression and it's really taking a toll on him. He's spending a lot of time sitting and doing nothing, just staring into space or lying with his eyes closed.
He doesn't want to eat and his sleep is disrupted. 

I'm trying to give him space and check in with him, talk to him, encourage him to eat and helped him make an appointment with his GP. But he isn't really interested in doing anything at all.

What else can I do to help him? He's not very responsive and I don't feel like anything I'm doing is working.