Love hotels can usually be identified using symbols such as hearts and the offer of a room rate for a as well as for an overnight stay. The period of a "rest" varies, typically ranging from one to three hours. Cheaper daytime off-peak rates are common. In general, reservations are not possible, and leaving the hotel will forfeit access to the room; overnight-stay rates become available only after 22:00. These hotels may be used for prostitution, although they are sometimes used by budget-travelers sharing accommodation.