On this overnight international flight, there were two bathrooms for 32 business class seats, one of which was blocked off continuously for crew use, resulting in one bathroom for 32 business class passengers, four business class crew, and the pilot team, or over 40 people. 40 people per toilet in business class is unacceptable. There were continuous lines at the toilets. Also, the lights on the new seats never turn off (the night lights) and the flight attendants spend most of the flight serving meals. In other words, in addition to the unacceptable toilet situation, on about an 8 hour overnight flight, NO time to sleep. I've been on hundreds of international overnight flights and this was terrible. Other international carriers get the concept that people want to sleep on an overnight flight in business class. When will Delta learn. Take Swiss or another international carrier instead.