A:Answer Another option is to press and hold the Home Button for 3 seconds to launch the Quick Access Menu and select Sleep Timer. The options are 5 , 10 , 15 , 30 , 60, 90, 120, 150, 180 and 240 minutes.
Once you select the desired time it will be ON. If you access the Sleep Timer again it will give you the Option to turn it OFF.
David M. - Toshiba Support