One more little factoid, you are in no way sterilizing your linens when you use household bleach, unless you are using somewhere around half a gallon each time in water of at least 150 F, or water alone at over 180F. Household chlorine, if fresh, is probably less than 5% chlorine. Over time, heat and light reduce that amount and most household bleaches are being used at well under 5%.
In commercial laundries, if they seek to sanitize linen, they need to use a quaternary ammonium to do the sanitization. Even in a sanitized situation, the linen still can have germs. Sanitizing only means that the majority of germs are killed, usually about 80–90%. Disinfection is what you really want to seek. Disinfection means that 99.9 of all germs are killed.
More than you wanted to know, I’m sure…