Is important to unplung electrical appliances for save energy. After you turned off they consume a little bit of energy. You may have noticed the small red light on your TV. Also you should unplug your laptop, your stereo system, your coffee machine etc. It helps you to reduce your electricity consumption when you aren’t using them.
You also reduce electrical vibrations in the room. By doing so, you will improve the quality of your environment.
More benefits of reducing energy consumption at home HERE.