If you like to nod off to the sound of your favourite snoozing tunes, be it whale noises, country music or death metal, (hey, I’ve got no prejudices whatever for ya!), you will no doubt be familiar with the irritating lack of battery that ensues a long slumber with your music still blaring. Either this, or your dreams are rudely awakened by the switch in playlist from calm acoustic melodies to tinnitus-inducing Gangsta Hip-Hop! In order to avoid these two unfortunate circumstances, you can actually set your iPhone’s iPod to go to sleep after a certain amount of time, by launching ‘Clock’, then clicking ‘Timer’ and selecting how long you think it will be until you are in the land of nod, then click on the ‘When Timer Ends’ button and scroll up to ‘Sleep iPod’. Then just get your cocoa and slippers and drift away!