I used cycling shorts when I thru-hiked the Appalachian Trail many years back. I slept with them. The heat that is given off by the body when inside the sleeping bag helps to dry things out...especially if you are on a short 4-5 day trip you shouldn't have much else to deal with. Now when i ride I just mostly deal with it. I don't have a sense of taste or smell and don't really care what other people think. I will ride in the same pair shorts two days in a row then rinse them out in a sink and let them air dry on the rack the next two days while wearing the other pair of shorts. I will only go into a laundrymat once per week and then I dont bother using any detergent on the clothes. I just wash in them in plain water. I still do sleep with both the shorts and jersey on...again to help it dry out overnight from sweating during the day.
Probably won't work for you but figured I would chime in.