<p>" understand that looking at least casual when being interviewed for Harvard is highly recommended, but are you seriously gonna tell me that you would mark down a very enthusiastic, charming, intelligent, amazing student just because he or she attended the interview, as you put it, "[in the clothes] they slept in." </p>
<p>I actually have never had a candidate show up like that. I have heard, though, from a Harvard adcom that when she was an alum interviewer, she had some candidates who literally looked like they had rolled out of bed.</p>
<p>Not only were they very rumpled, they didn't seem at all interested in the interview. Believe it or not, there are students who sit through interviews answering questions as briefly as possible and oozing resentment. This typically is because they have no interest in going to Harvard, but had to apply because their pushy parents made them do so.</p>
<p>Thus, no, they would not be graded down just on looking rumpled. Their attire, however, would probably be described in an interview report along with their attitude. </p>
<p>A report might read something like, "Student came 10 minutes late and wearing a very wrinkled shirt and pants. His answers to all questions were one word or very brief answers. When asked what he planned to study, the student mumbled, "I dunno." When asked if he had any questions for the interviewer, he said, "Can I leave now?"</p>
<p>Finally, in response to your question: Harvard interviews are not fashion shows. Students aren't being graded on their attire. Frankly, I doubt, however, that an "enthusiastic, charming...etc." student would show up in attire that looked like they rolled out of bed. If so, though, it's unlikely their attire would be held against them. If I were the interviewer, though, I would ask them about their attire. </p>
<p>An answer like, "I was up all night putting out our student paper, and I didn't have a chance to change clothes," would be an easily understandable reason for the student's attire.</p>
<p>"I wanted to see whether Harvard interviewers look beyond the superficial" would be an interesting response that I probably would follow up with questions designed to figure out if the student was simply passive aggressive or was already acting like a social psychologist.</p>