It means you don't have it in your bedroom. Because having something is not the same thing as not having something, and it doesn't matter if that thing is share

It means you don't have it in your bedroom. Because having something is not the same thing as not having something, and it doesn't matter if that thing is shared with a small collective or isn't directly attached. It means that when you live in an environment with shared bathrooms, then your notion of "living in" is wrong if you don't include them. There is an important difference between "I live in" and "I sleep in".