I am not a big fan of flying or going on airplanes at all! However, in the event that I have to take a plane somewhere, I always make sure and catch what they call “the red eye” to wherever I am going. The reason for this is usually because it will be guaranteed to have less people on the plane for more space. And also, one of the main reasons I do this is because the central heating and air conditioning works better when there are not many people on the flight. Heating and air conditioning on planes during the day or regular hours to me has always been lousy. Partly because the air flow is very weak. But then you add the weak air flow on top of a packed plane, and it does not give much room for the heating or the air conditioning to properly circulate around. But when you have a less packed plane, that weak air flow of their weak central heating and air conditioning that they have can circulate just enough to give the perfect indoor comfort on that flight. The “red eye” is most appropriate for this. I have never felt bad with taking these after hours night flights to wherever. Never once have I had a complaint about the heating and air conditioning nor the degree of my indoor comfort. Also because of the minimal amount of people it is quiet, which makes it perfect for sleeping with the comfort of the quality heating or air conditioning that comes out of the little air vents that they usually have on board these planes.