When do you change bed sheets?when changing bed sheets? Generally, when to change sheets is a matter of personal preference. It is recommended to change sheets once a week. However, you should consider changing your sheets more frequently if your sheets are obviously stained, if you are sick, if you tend to sleep naked, or
Over time, there will be many sweat and oils on silk sheets. Thus, bacteria can be growing in them, and you will feel uncomfortable to sleep on. Therefore, you have to change silk sheets regularly. Patients and people with extreme allergies have to change bed lined every day. Many experts recommend changing silk sheets weekly.