I found a question about ants sleeping - Do ants or other insects sleep, and if so why?, but I don't think it really answers my question.
For the question, I'm mostly referring to web-making spiders, say orb webs.
So a spider set up shop inside my house late last year. It built a web high up in the corner and started catching moths and stuff. I know it's been there and it's the same spider because I've watched it grow.
But when the spider isn't catching something, eating or building a web - what is it doing? Just waiting for web vibration?
I imagine if it was outside it would be hiding or trying not to be prey. I also imagine it might be looking for a mate. What I can't figure out is what this spider does all day.
Why would it build a web where no other spiders are and then stay there for months doing nothing?