Yeah, I've also noticed that I get more done when I'm sleepy. However, it's also harder to get myself to work in that state, as well as studying my material while I'm doing it. I'd say it's not worth it in the long run, although it depends on what's better, work completion or good memorization. When I'm tired, I tend to focus more on the minute details and it's hard for me to put everything I've learned together in my mind to create a full picture.
As for the meds, I refuse to touch SSRIs, and Seroquel too, due to weight gain. I might try Ritalin/Concerta when I'm out of school so that in case my insomnia becomes more severe (sleep difficulties is a side effect), my marks won't suffer. I know one person with AS who is taking SSRIs and he's gained a LOT of weight because of it. These side effects can be very strong.
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Leading a double life and loving it (but exhausted).
Likely ADHD instead of what I've been diagnosed with before.