Unfortunately this doesn't actually help someone in deep depression. It's quite literally enabling the behavior without the consequence of them cleaning up their own mess. The best thing for someone with clinical depression is to literally clean their room, even if it takes weeks. Step by step, one piece of trash a week. Maybe vacuum the next week. One could argue hopefully they will see they are truly loved for someone to go out of their way like this, but people have to change themselves. Discipline is the best antidote to depression. Even if it's very small increments. Every small step is more monumental than you could imagine in fighting our demons.