Dying can be a dirty business, but there are a few possible explanations for the lack of soiled bedsheets. There are undergarments for incontinence, he was 79 years old, that’s one possibility. Do you think his body wasn’t on the bed? I don’t know what you’re getting at.
I am not getting at anything other than the sheets are really clean for being underneath a dead body.
I don’t know what that means. But you have a possible explanation with the undergarment aspect.