I have a room that is decorated all white, I have glass frosting on the windows so I cannot look outside, other that a desk, chair & PC with no internet access & what I need for work, that all thats in the room, no phones, no music, no clock & I often wear ear plugs to reduce any noise distractions. I also have a flask of coffee so I don't get distracted while going to make a cuppa, its often only when I need to put a light on that I know I have been busy for 6 or more hours