I spoke to Mark this morning and he finally sounded like he was enjoying himself! The food situation for them all has changed considerably. They no longer have to choke down the meals given to them, which is, I'm sure a big reason for Mark's upbeat attitude.  

The Yak's you see pictured above its what will be loaded up for them all when they wake. There called "Yak Trains" and they carry most of the equipment needed for the climbers to survive for the next 5 weeks.

Rest well climbers, your moving onward and upward when you wake!