How often should I wash my sheets? Some of my friends do it every week, while others wait months.

     

The once-a-weekers have it right, especially if they’re using hot water and bleach or a detergent that contains peroxide, says microbiologist Dr Philip Tierno. Even more important: protecting your mattress and pillows from becoming a dinner buffet for dust mites. Try Sealy’s Comfort Collection waterproof mattress and pillow protector, which has an antibacterial sanitised finish.