mattyjnz:MurrayM: I wonder if I can use Blocking Mode to replace the Bedside Buddy app that I currently use? I use this to turn off data sync between 9pm and 8am so I'm not disturbed by incoming emails, but calls and texts can still come through.
You should be able to use the Sync Schedule (in email settings) for that.
I can't seem to find anything that lets me set a schedule for when data syncing should be allowed, I can only turn it on or off.
In the Gmail app (which is the only email I use) I go into Settings and then tap the account I want to change. Under "Data Usage" it says "Gmail sync is ON" and if I tap on that then I get taken to "Accounts and sync" that lists all my email accounts. I can tap on an account and then I get a list of items that I can sync (calendar, contacts, currents, drive, etc) with tick boxes next to them. And that's it.

