Where in the castle would a knight live?

Answer 1

Depending upon the time period and wealth of the lord of the castle, knights and soldiers could live within a barracks, where they were crammed together, sometimes with beds/cots but often sleeping on the floor or on pallets of straw. In poorer or older castles, soldiers slept where they could. Only the lord's family had beds, and everyone else, servants and soldiers, curled up wherever it was warm, often sleeping in the kitchens, the great hall, around fire pits in the courtyard, or wherever they were stationed for guard duty.

There is a great scene in "The Lion in Winter" where King Henry II is waking up his household to take a trip to Rome, and Peter O'Toole runs through halls, kitchens, corridors, throughout the courtyard, and all around the castle, shouting and kicking the sleeping soldiers and servants awake, who are all curled together for warmth. It's crude, but that's how life was back then.