R.J.
Every sunday... barring any unfortunate/unusual/unforeseen* events... all sheets, duvets, pillowcases get washed.
Down Comforters get washed every other month.
Exclusions = A change right then and there:
- Tampon mishaps
- Guests
- Wet muddy dogs & or boys
- Spills of various sorts
- Illnesses
- Heat waves / aka excessive sweating