OH had already been relegated to another room so it was just me to wash! I use a duvet with a cover and that would be a pain to do each day so only washed bottom sheet, flat top sheet (bought to put between me and duvet) and pillowcases. I work at home so just stripped the bed each morning, washed the sheets and put back on the bed when dry.
I just remembered that the showering prep counted day of surgery as day 5. The solution I was given to use was manufactured in Germany where according to Dr friend, the surgeons shower before and after surgery. I didn't like to ask my OS whether he had showered before my surgery!