When you have the basic survivability done then do whatever you want to do. We know there still is a steady and healthy 7 Days console community, as we hear from them on our social media channels all the time and the game still has nearly 10, concurrent users playing the game on weekends. I don’t know how much a «unit» of iron weighs. There is absolutely NO sleep mechanic in the game, and no penalty for lack of it. The only people you will find are the guys running the trading posts.