sorry.. perhaps this is a better explanation http://docs.heroku.com/constraints http://docs.heroku.com/constraints Another example, if you're using Sass for C

sorry.. perhaps this is a better explanation http://docs.heroku.com/constraints http://docs.heroku.com/constraints Another example, if you're using Sass for CSS, I don't think that works seamlessly either due to this read-only filesystem restriction As for the delay to restart your app.. its really nothing to worry about.. its probably on the order of a few more hundreds of milliseconds, but if its shut down due to low traffic, you probably don't need that kind of responsivity anyway. If its getting alot of traffic, then this sleep period shouldn't happen.