You dont need to hold the sleep/wale button for 4 seconds. Once click to the side and the Kindle will sleep or wake. I just did it on mine for the heck it it and sure enough, holdong the button over for a little over 4 seconds blanks the screen and there is a little of the text that you can barely see. I would not worry about it. Slide it over for a little bit and you will be good to go
