Originally Posted by RedRoverJ
I think the "sleep" mode to shut down solution was a patch for the known issues with battery life.
But it obviously wasn't, because some users were reporting no problems with battery life. I've only ever had one instance of running out of battery and I leave it on, by the bed, day after day (and read for a considerable time each night).
Some users have reported serious battery problems, such as not even being able to get through one book without a recharge, but this is obviously not a problem that applies to all Kobos, just some of them.