Read it through once

Occasionally, in this low-arched hall, a soldier would arouse and turn his body to a new position, the experience of his sleep having taught him of uneven and objectionable places upon the ground under him. Or, perhaps, he would lift himself to a sitting posture, blink at the fire for an unintelligent moment, throw a swift glance at his prostrate companion, and then cuddle down again with a grunt of sleepy content.