Even robot girls need a good night’s sleep.

And yes, Ao does indeed by her sleep clothes in the $5 bargain bin at the Save-A-Bunch on the edge of town, because there’s no point in splurging on clothes no-one’s ever going to see you in when you could be spending that money on computer parts and circuits instead.

(And yeah, she’s also technically a cyborg, but that’s a long story.)