In 5 campers the only window next to me is the TC and it does not open, is just a long window in the middle, but not as far up sleeping me as my shoulders.
Windows have always annoyingly been behind my head and feet on the ends.
I at least look forward to being able to prop up a pillows behind me without the screen getting pushed on.
Edit, cut the window hole at my head. The window will be as low as the mattress (or the mattress is that high), or just under, so by my head it is less likely that the blankets bunch up and block airflow, or that someone kicks out the screen with their knee.
thanks