[header] How to get rid of dust mites in your mattress [title] Wash your bedding with hot water weekly. [step] Put your sheets, pillowcases, and blankets through the wash once a week. Wash them in water that is at least 130 ° f (54 ° c). 
Cooler temperatures will not kill off the mites. [substeps] If you own bedding that cannot be washed hot, put it in the dryer for 15 minutes at 130 ° f (54 ° c) or higher to kill the mites.