...why put it in sleep mode overnight? why not just save and shut it down?
just because a device can doesn't mean you have to, and it sure as hell doesn't mean you should. unless you're letting it download stuff online overnight. but really, why not have it plugged/on cradle if you're gonna leave it on overnight?
you all knew battery life on the 3DS is short enough, so why complain? :/
...it's not a mobile phone that you can leave on all day and all night, you know. seriously, i don't get it.