Just landed after a 14 hour flight. I always change clothes, out of my travel attire and into black yoga pants and a tank with a warm pullover or jumper. After washing up, I put in earplugs or ipod, eyemask, and sometimes take a Lunesta. I can sometimes get 8 hours in if I commit to it. I change back to my travel clothes when I land. I do this routine whether in coach or business. When I traveled to Europe frequently it was much harder because the flights are so short. Either way with this routine I feel like I have had a night's sleep even if I only get 4 hours in.