The Aspire One line of laptop computers by Acer come in a wide range of models, each with a distinct set of features and specifications. Every Acer Aspire One computer is equipped with a sleep mode that conserves energy and allows the computer components to rest when not in use. The Aspire One is set at the factory to enter computer sleep mode after 30 minutes of inactivity. You must wake your computer from sleep mode in order use it again.
Plug the power adaptor in if it is not already connected.
Lift open the display.
Press and release the "Power" button. The Aspire One awakens from sleep mode.
Press the "Fn" and "F4" keys simultaneously to place the computer back into sleep mode.