Here's how Sara solved the kid-in-a-hotel-room bedtime situation:
When I realized I had booked *adjoining* rooms at our hotel instead of *interconnected* rooms I was slightly panicked — was someone going to be stuck in a dark motel room starting at 8:30 every evening (reading in the bathroom the only escape?). I threw in our baby monitor with the hope that it would work through the hotel room walls. It did, and it was great — we were able to put the baby to bed, wait for her to fall asleep, and retire to the adjoining room until it was time for us to go to sleep.
I suspect other people do all the time, but it had never occurred to me.