While many 4-star and 5-star hotels provide cozy, branded robes in guest rooms, they are almost never "free" to take home. They are considered part of the room's reusable linens, similar to towels and bedsheets, and are laundered after each guest's stay. If you decide to pack a robe into your suitcase, the hotel will likely charge a "replacement fee" to your credit card on file, which can range from $50 to $150 depending on the quality. However, some luxury hotels do offer "complimentary" items that you can keep, such as disposable slippers, which are intended for single-use and cannot be sanitized for the next guest. If you fall in love with a particular hotel robe, most upscale properties have them available for purchase in their gift shop or on their website. Some specialized vacation packages or "honeymoon suites" may include a complimentary personalized robe as a souvenir, but unless it is explicitly marked as "yours to keep," the safe rule of thumb is to leave it hanging in the closet when you check out.