Sleeping in any position

Those who were there know: in the army, a soldier learns to sleep in any position if he is in the right units. No wonder, the power nap in between and in the most obscure places restores combat power. For others, it is an efficient form of fighting against extensive boredom, which is usually interrupted by cleaning. The man in the picture belongs to a Russian unit and admittedly has an extremely peculiar sleeping position. His comrades are lined up on the floor in a classic way, while he is leaning against a heating pipe on the wall. Probably nice and warm too, that makes one sleepy...