Turn off your smartphone on schedule. People who stop reading emails and checking their phone at a set time each evening sleep better than those who don’t put limits in place, according to a Northern Illinois University study. There are further researches which show that if people know you are busy, they will leave you alone. If we email someone back immediately, the message it sends is we are available all the time. You need to put a deadline which will help you detaching from the work psychologically.