untimely logout

You know what sucks? When you do a whole bunch of work and then click Save or Publish and it goes to a mostly blank screen that just says Are you sure you want to do this? And there is only one option, which is yes. You click it and you go to a login screen and all your work is gone! Sometimes it autosaves, sure, but sometimes it does not. Or it hasn’t saved the last bunch of updates or most recent brilliant phrase you already can’t recall.
I understand that there is some sort of time limit on how long I can be logged in for, but it would be good maybe if I was automatically logged out after a certain period of non-connectivity.
For instance, the last time I was logged in to my website was last weekend. I left it and did not go there at all, all week. Today I went there and the Edit links were still visible, so I knew I was still logged in, even though I haven’t been there for a week. An hour or so later, it logged me out.
But why isn’t it set to like 12 hours or hours or something? A week? Probably more, as I don’t remember when I last actually had to log in.
So yeah, my request would be to stop logging me out while I’m in the middle of something. If it’s time to log out, have it wait until I leave the site, or at least let me Save/Publish what I’ve been working on before asking me to log in again.
That is all.
Thanks!