Assisted living facilities can range in size from a small residential house for three residents up to very large facilities providing services to hundreds of residents. Where provided, private apartments generally are self-contained; i.e., they have their own bedroom and bathroom, and may have a separate living area or small kitchen. Alternatively, individual living spaces may resemble a dormitory or hotel room consisting of a private or semi-private sleeping area and a shared bathroom. There are usually common areas for socializing, as well as a central kitchen and dining room for preparing and eating meals.