Nah, it doesn't have a deeper meaning
In the QnA of the author, she tells us that Taeman used to sleep in a bed bc he was still growing(as in he as still a kid), but as he grew up his sleep schedule got out of whack, same goes for the other killers, and then he started sleeping in the closet
My guess is that he probably saw the boss doing it, so he tried it and liked it, plus sleeping in the closet gives more of a tight and dark place to sleep, which ig it's easier to sleep there? More comfortable?
Plus, I don't think Taeman was ever closeted with the fact that he likes men, he was very opened when he realized he liked Dahyeok, and even told his colleagues right away
can someone explain to me? I saw boss and taeman did it so is it like killer sanctuary thing or just the literal meaning of closeted gay author intended to give?