The fear of monsters lurking under the bed might not be as real as the fear of monsters in the bed. Those monsters are dust mites, which are microscopic organisms that can live in your beds. Washing bedding in hot water can get rid of new dust mites. Others are trapped inside special mattress and pillow covers that are available.
Stuffed animals can also attract a lot of dust.
Pediatric allergist Dr. Jack Becker says, They work by having a series of screens and some fabric some metal that will trap different size particles to a very small part. Becker says the hepa-filters work very well to trap some types of allergens. If you try and chase a dust mite, if doesn't really make much of a difference because the dust mite doesn't hang in the air very long. Hepa-filters can be used in heating and air conditioning units and filter the air while the system is running.