How can I turn my email off for the night? (iOS) I would like to be able to easily turn on and off notifications for a particular app. I have my reasons for this, and if you'd like to know them you can check the edit history, but please keep responses to the topic of how I can do this, not whether I should want to.

There seem to be a couple of options for this, but neither is ideal.

Firstly, I could turn on "do not disturb" mode for the periods when I'd like the notifications turned off. This will block notifications from other apps, so it's not what I want.

Secondly, I could go to Settings -> Notification Centre -> [my app] and toggle "Show on Lock Screen". This doesn't seem to be something Siri can do for me, and it's something I want to do very often, so going this deep in the menu hierarchy is inconvenient.

Is there a more convenient way to toggle notifications for a particular app?
As for the current version of iOS (7).
No, there is not. Apple only offers the Do Not Disturb feature and the settings for notification center which are currently not controllable by Siri.