Like many of us on here I check emails last thing before going to sleep and first thing when I get up. But I won’t wake up in the night to check emails. When you work in crisis management, often you cannot completely unplug. But where possible, you need to create those ‘windows’ to get deep thinking done. Many of us have our own ways to create those windows. Charge the phone in another room, or whatever. For those of you can’t, as they say, there’s an app for that.