It’s never mentioned if Darth Vader eats or uses the bathroom. I kind of assumed that he doesn’t eat or use the bathroom, but how does he sleep? I was wondering if he takes the mask off and the suit and lays down on a bed at night. I was thinking that maybe the suit supplies him with energy in a way that renders the need for sleep or his digestive system unnecessary. He’s able to be awake and feel comfortable 24/7 with no sleep or food because he gets a constant supply of energy pumped into him through the energy cells built into his suit. The cells just need changing every so often. I was always hoping to see more behind the scenes footage of Darth Vader’s suit. I was hoping to see maintenance done to his suit. You’d think with how fragile his body is being dependent on that suit that somebody that doesn’t like him at some point would just pull the plug on his suit (metaphorically speaking) when he’s not noticing and kill him.