The result has been a really peaceful alternation of homework and naps. I would be concerned about sleeping through the night with all this napping, except that I know that any bouts of wakefulness can be put to profitable use with more homework.
The class schedule for grad school is like nothing I've ever seen before. Classes run from 8:30 AM to 5:30 PM for three days in a row - once a month. A month! I assume they really are expecting us all to be grownups as far as pacing the schoolwork throughout the intervals. We shall see.