Dryer will not start!!

My whirlpool dryer just suddenly stopped working. One night I turned the dryer on before I went to bed and it did come on like always. The next morning the clothes were still wet and the cycle knob indicated that I was not finished, so I tried restart the dryer. I reset the knob, pushed the button and nothing happened. It does not make any noise at all. I have already checked the breaker so I know that is not the problem.
Thanks!