Having just done a 14 hour flight, I slept about 10 hours over 3 nights. My skin has been relentlessly itchy and I can't knock myself out due to work. Night times are restless and long even after having taken my normal knock out dosage of antihistamines.
All the good work improving the skin nearly went out the door. Until someone offered me their place for a marathon. It was hot, humid, there were lots of people and I could feel their body heat and smell their sweat. I suffered from heat exhaustion. I'm not entirely sure whether I enjoyed this or not.
However I had a great 10 hours sleep and today although it is dry and needs healing, my skin is feeling much calmer.