In a couple weeks, I'll be flying a redeye on UA on a 752. I sleep best in a window seat.

I know that some rows are going to have a fuselage rib in the right place (i.e., just behind my shoulder) and other rows won't (i.e., in front of me). Is there a resource for determine where the ribs are located relative to each row? I'm looking for a really fancy schmancy seatguru.com.

Or, if you're also a window sleeper and you have a favorite row in a 752, it would be great to hear.