Well, I’m glad you are getting some… bookings that is 
I had all my guests cancel until the end of the year.
@Brian_R170 gave you the best advice.
I cringe to see blood on my bed sheets but I’m fine with sperm. it’s way more difficult to get blood out of the bed sheets than sperm. with blood you have to soak in cold water then use oxygenated water then wash. with sperm you just wash, true i use the highest temperature possible.
But the thing is when you sign up to become a host you can bet you will end up getting all kind of bodily stuff on your linens: maybe someone has a small baby who had an accident or a toddler who might wet the bed… etc. If it can happen, it will and no matter what you tell them to use x towel for x purpose will not matter.