[ogre_codes]

Not at all. While you can rent an air-mattress on the living room floor, it should be advertised as such. When a listing is for an apartment with 2 bedrooms and an air mattress on the living room floor, listing it as "3 bedrooms" is bullshit and not even legal.

[hndamien]

It should be disclosed in the listing, but in search filters it is fine. They could probably find a way to disclose it better is search filters too with a bit of design.