Also, pull the wardrobe away from the wall and roll the carpet back so it can dry out.
If you have a fan, or can borrow one, set it to blow on the bottom of the wet wall (you don't need a fan heater) and the moving air will dry out the wall quicker (like a washing line on a rainy day). You also need to open the window or ventilate the room in some other way to get the water vapour out.
If there is wallpaper, pull it off now.
Presumably this is an older house with solid (non-cavity) walls.