I can't go asleep if the closet door is open. The open windows are fine, the bathroom door is fine and I'm meh about the bedroom door.
But the closet cannot be open. No way. not even.
I had a wardrobe in my childhood bedroom and I don't remember being worried about closet monsters then. But I can tell you about every apartment/townhouse/duplex/house that I have lived in as an adult. All of them needed to have the closet door closed.
I realize that I'm forty-three years old but it's a fact. Closet monsters exist.