I also create the man cave in my room when I am stressed.
What sort of stuff is in your man cave?
Tool, "projects" and dead mice. Things hang from the rafters and are glued to the walls or held on with magnets - there are a lot of magnets. Lots of pens, pencils, paints and paintbrushes and paper specific to both. Heating pad, drinks, chests with treasure and piles of clothes that muffle the sounds from the train and the neighbors. an air filter for the dust and lots of boxes with specific tool sets. usually a couple of computers and a tablet or two. at least two sets of headphones and at least two sets of earplugs.