Dust Mites

• It's ideal to change your sheets weekly. People shed skin cells in their beds. Unfortunately, dust mites love to eat dead skin cells, and therefore, dust mites can thrive in your sheets.
  
  Wash your sheets in hot water weekly to avoid excessive buildup of dead skin cells in your sheets. Some people with allergies may need to change their sheets more often. It's not a big deal if you don't always change your sheets weekly, but it will help reduce the number of dust mites in your bed.
  
  

Other Reasons

• There are other reasons to change your sheets. If you frequently sweat at night or if someone wets the bed, change the sheets right away.
  
  It's ideal to have at least three sets of sheets for each bed. If you're not always prompt with laundry, it may be a good idea to have more sets of sheets to make sure you always have a clean set to put on the bed.
  
  

Other Bedding

• It's a good idea to wash your blankets and comforters or bedspreads every few weeks. This also gets rid of dead skin cells and any dust mites that might be lurking in them. More frequent washing will also help prevent stains and make your room smell nicer.
  
  

Mattress Pads

• It's also a good idea to use a mattress pad. Mattress pads come in many different varieties. You can get an allergen-reducing mattress pad or a waterproof one. There are many different styles and levels of padding. If you want an extra layer of cushion on top of your mattress, you can get that too.
  
  Shop around and find the type of mattress pad that best meets your needs. No matter what type of mattress pad you get, they all help protect your mattress from dust mites. And of course, don't forget to wash your mattress pad every few weeks.