There is considerable debate on how often you should change your bed sheets. Several surveys conducted over the years suggests that the majority of people change their sheets anywhere from once a week to once a month. Most people recommend changing the sheets at least every two weeks, and some people may need to change them more often, depending on certain needs.
We shed skin cells at all times, and at night we shed these in our beds. Unfortunately these cells are the food of dust mites, and if you have allergies to dust mites, it may make sense to keep skins cells in bed at a minimum. Some people have extreme allergies and really need to change their bed sheets once a day. Most others can get by with changing sheets once a week, which is about the average rate of sheet change if you employ a housecleaner.
Obviously, if bed sheets get soiled sooner, they ought to be changed immediately. People who suffer from night sweats, or kids who have accidents at night should have sheets changed right away. Since it can take a while to get sheets washed and cleaned, it’s recommended you have three pairs of sheets for each bed. This way you have one available for immediate changing, one on the bed, and one that’s getting washed. You may need more sets if you routinely get behind on the laundry.
If you don’t have terrible allergies from dust mites, and your bed sheets aren’t soiled, it’s not likely to cause huge problems if you wait a little longer to change sheets. There are many people who only change bed sheets once every couple of weeks or once a month, and a few people in surveys don’t use sheets at all. It is a mistake to not use sheets and a good mattress cover. Failure to use these may increase dust mites in your mattress and reduce mattress life. It can be less expensive to buy three pairs of bed sheets or even two, than it is to have to replace a mattress sooner than you’d like.