Are you asking about the value for the application pool timeout?
I'm not really sure how well it works for long periods of time like that, it might be ok.
One thing you could do is keep a computer at home logged into your site with an edit page open like the html content editor. All our edit pages have a session keep alive feature enabled so it keeps making background requests to the site to prevent your session from timing out while editing content. Not the greatest solution but it does keep your app alive because even if the app is shut down the requests from the browser should start it right back up again.
Hope it helps,
Joe