How often should you change your pillow case and bed sheets?

In order to keep your skin clean and prevent acne, how often should you change your pillow case, duvet case and bed sheets respectively?How often should you change your pillow case and bed sheets?
once a week or once every week and a half it depends on how much you prespire while you sleepHow often should you change your pillow case and bed sheets?
once a month is all your need really, there are 2 double beds and 2 single beds in my house, it would take up all my time to wash, dry, iron all of them. to the people who say every few days - are you really that dirty!
The Martha Stuart's of the world would say every week the bed sheets need to be washed. I live a little more practical and try to get to it once a month.
I don't do that in months unless my mom does...


and when she does she gets angry a lot and asks to change every 4-5 days...





Though scientifically it's always good to changes once within a week...
Neither has anything to do wth Acne. You should change/wash the bedclothes each week or at the minimum once every two weeks depening on conditions.
Once a week...but if you have really oily skin or sweat a lot at night, then I would try for every couple days.
Change them weekly.
I Think You Should Change Them Once A Week
Well you should every week. But i'm lazy so I do every month :(
once a week or at least once or twice a month
every 2 days that's what I did.
I changed my bedsheets twice in a week.
once a week
depends. i usually change mine once to twice a month
every three to five days

scars