An allergy to dust mites is extremely annoying. Your bedding should be washed weekly at 60 degrees. Vacuuming a few times a week and mopping (carpeting is anathema to these allergies). Some things however, you can not wash at 60 degrees. It would discolor or not beautiful remain longer in a different way. You can do things in the freezer (one night) but still convenient it is to heat it for treating Article 5 DRY minutes in the microwave. (note that there is no iron / aluminum is in) Then you can wash at 30 degrees. It is absolutely mite-free.