Normal sleeping spots and pet beds look a bit silly for large animals.
This mod adds larger versions. Due to alignement issues (animals were sleeping in the bottom left corner only) the size change is purely graphical so only the centre tile is actively in use. Clipping may occur if you place the beds against a wall.
Other than size and material amount all stats are the same as the small beds. Afaik RW doesn't allow for beds to have a minimum body size set, so all animals may use the large beds. I recommend also using [url=http://steamcommunity.com/sharedfiles/filedetails/?id=1098354593]Animals Logic[/url] which allows assigning beds to specific animals and switching to medical pet beds.
I may have had this done for a couple of weeks, but forgot to actually switch it to public.
Please report any unexpected behaviour!