Skimping on sleep in undergrad and not regretting it, chalking it up as "practice" for life sleeping in a cube? That doesn't sound very fun. I think there's a saying. . . something like "A students end up working for C students."
I've always wondered where that leaves B students. I have no ideas how many A's I earned, exactly, but I do recall my GPA to a vague notion of a range between 3 decimal places.