In our rentals, I always make sure the bed has 3 blankets minimum: a sheet, another blanket (usually fleece), and a duvet comforter. I also always make sure to include a stylish throw on the end of the bed as a functional accent piece. If there is a chair in the room, especially a comfy chair, I would make sure to have a throw nicely placed along the back of that as well. Essentially, anywhere a guest might land in the room should have a blanket easily accessible.