What do hotels do with free rooms?

Hotels with available rooms often sell them at discounted prices through last-minute websites or apps to maximize occupancy. Sometimes the rooms are also offered as free upgrades for regular guests. In some cases, hotels can also collaborate with travel agencies to promote the booking of available rooms. Additionally, hotels can utilize their available rooms for group reservations or corporate events. Some hotels also offer special packages or promotions to sell their available rooms. In some cases, available rooms can also be used for coupon campaigns or promotional activities. Overall, there are various strategies that hotels can use to effectively fill their available rooms.