On the iPod classic, nano and shuffle, “sleep mode” happens when the iPod has not played music for a few minutes. The screen goes blank on the classic and nano, and the controls are deactivated on all three models to conserve power until any button is pressed. Sleep mode on the iPod touch is the same as “locked” mode–that is, the screen goes blank and the controls are deactivated until the sleep/wake button is pressed and the lock slider is slid to the right. The only model for which sleep mode can be removed is the iPod touch. Tips Writer Bio
