iPad feature request: auto "deep sleep" after 24h idle (10 seconds to wake is okay). iPads used to last over 30 days on standby, but every time I pick one up now after less than a week it's dead

Steve Jobs announcing the iPad 2:

@christianselig I thought it was just me and I was doing something wrong. I have just started turning my iPad off when I’m not using it, which is mildly inconvenient, but less so than it always being dead.
@praetorianpi That would help if I would remember, sometimes I set it down and just do something else without thinking ;_;