Pick up the bundle and remove to the laundry. Handle carefully not to disturb the matter because when it becomes airborne it will contaminate the air space for up to eight hours. Cover the mattress and pillows with barrier cloth covers. Good preventive maintenance helps more than any chemical spray. Chemical sprays that are available often contain chemicals that are toxic.
Shampoo carpets with a degreasing detergent at least twice a year.
Keep curtains and upholstered furniture to a minimum and simple. Hardwood, vinyl or tile floors are recommended for the real allergic sufferer. A good quality HEPA air filter will help to eliminate the airborne matter. Air filters or vacuums will not remove the mite. But in terms of a single allergen, the dust mite is probably the most important one.