I am what some consider to be a bit of a neat and clean freak, but I'm sure if someone brought a blacklight into my home I'd be pretty grossed out too. What they found with a blacklight in hotels and cruise ships they will find in the homes of every one of us. Unless we hosed ourselves down with chemicals and walked around every day in a haz mat suit, we are all germ and yuck carriers. It's impossible to sanitize the world. And stay away from antibacterial stuff. According to the American Medical Association, they do more harm than good by making germs more resistant. And the CDC says they aren't necessary. Simple hand washing with regular soap and avoiding putting your hands into your mouth will protect you enough. (after learning about how dirty our hands can be after touching everyday things I quickly ended my nail biting habit!).
As for when I stay in a hotel or such, we don't use the bedspreads anyway, and I try to bring my own pillows if I can.