"Trying to kill us when we sleep was a pretty favourite tactic of -- man, a bunch of people. Devimon did it once, Etemon was always tracking us so we'd only get a few hours of sleep at a time before he showed up, Vamdemon tried it a few times, MetalSeadramon, Pinocchimon, not to mention that Bakemon are everywhere and most active at night," Yamato says, with a slightly helpless smile. "And, y'know, I don't sleep that well anyway. And I don't like being caught unawares, and waking up is pretty much just being caught unawares every morning."

He takes another gulp of the coffee, then reaches over to pick up a donut.

"I dunno. Mimi struggled with it at first -- that and sleeping on the ground, she kind of hated that the first time around -- and even she got used to it. It helps that sleeping in isn't that appealing when you're not in an actual bed."