One way to freshen your bedding without washing it is to use a fabric freshener spray. Simply spray a light mist over your bedding and allow it to dry before using. Another option is to place a dryer sheet between your sheets or in your pillowcases to add a fresh scent. You can also try airing out your bedding by hanging it outside on a clothesline or near an open window to allow fresh air to circulate. Finally, using a vacuum cleaner with an upholstery attachment to gently clean the surface of your mattress can also help to freshen your bedding.