Holy crap! I don't even know a lot of this stuff and I fly them. Should I know this? I don't see how it will help me make the bunk any better, maybe need to tuck it in a bit more on the higher powered aircraft. You should know that the red cup is never yours and always put a sheet then another sheet and finally the blanket, can sometimes get away with just sheet and blanket without the one between the bed and the blanket but trust me, do it long enough like that and it will bite you eventually, worrying if I will be passed over for upgrade when the time comes in 6 years due to my lazy bunk making with the wrong guy.