We made it!
It's 7 in the morning and Julie and Sara and I just arrived at our hostel! We felt bad walking in on everyone else completely passed out. But it's a great place-- plenty to do and there are a lot of other students here.
We had a taxi ride from a very nice old man from the airport who had a lot of advice for us-- and in turn asked for about $10 more for the ride than it should have been. There's a first time for everything...
Now we'll just hang around here and catch up on some sleep. We have a flight at 5:30 tomorrow morning to Cusco and will start our hike to Macchu on Sunday.