You actually can turn off the monitor. Under the little display that lights up letting you know the monitor is on (lower right hand side) there is a tiny button. Run your hand under (around the edge of) the thin monitor and you will find it there on the lower right hand underside. There is actually a set of buttons. I thought as you did that the monitor would only go to sleep but my OCD nature lead me to find the little guy. It actually just takes a tiny push upward to get the button to function. You probably have found this by now but still I had to answer. God bless.