Not because of the obvious answer of Aurora falling asleep (which is something beyond her control) but because of when she is told she is betrothed, she doesn't do anything to rebel against it. She remains stagnant and just goes along with it.

Sleeps for half of the film.

^I don't think that's a good reason to pick her for sloth, because that's beyond her control.

The scope of sloth is wide.[30] Spiritually, acedia first referred to an affliction attending religious persons, especially monks, wherein they became indifferent to their duties and obligations to God. Mentally, acedia has a number of distinctive components of which the most important is affectlessness, a lack of any feeling about self or other, a mind-state that gives rise to boredom, rancor, apathy, and a passive inert or sluggish mentation, Physically, acedia is fundamentally associated with a cessation of motion and an indifference to work; it finds expression in laziness, idleness, and indolence.[30]


forgot to put definition, sorry.

Either her or Mulan at the beginning, as she cheats for the test.

None of them really.

She seems to be pretty playful and self-indulgent. Also Mulan at the beginning and Belle.

or aurora. Though none truly qualifies. They both just sit on their misery for longer than one should