One of my beta readers commented about my use of the word "lounge". In Australia* we use "lounge" for both the room (for lounging in) and the piece of furniture (for sitting on, elsewhere called the sofa, settee or couch). The room for lounging in is sometimes called "the lounge" but often "the lounge room". In shops I see essentially the same furniture being sold under the title of lounge or sofa, or sometimes settee (well, they look the same to me). For some reason "couch" has dropped out of favour.
Anyway, the point of this post is to get some idea whether I should change this. The book is contemporary fantasy; yes, parts of it are set in Australia, but it's not trying to push that aspect. So if "lounge" gives the wrong associations to too many readers then I would consider using "sofa" instead. (After all, whether it's a lounge, a sofa or a couch, it should be comfortable.

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Comments?
* Where I grew up in Victoria we referred to the sofa as a "couch", so I'm not sure if "lounge" has grown on me since moving to New South Wales, or whether the word "lounge" has become more common over the years.