Handy Wrap Handy-wrap My Mattress For Dust Mites?

Handy-wrap my mattress for dust mites? - handy wrap

My husband seems to be allergic to dust mites, because every time he comes suddenly into bed with her asthma and allergies ACT UP. So I wonder, what anyone knows if the cushion packaging hand-wrap) to protect against dust mites (and toxic chemicals in the mattress? I try to find an economical solution to expensive mattresses. I will also wash bedding in hot once a week or be cleaned more often to see if it helps. So be very useful to wrap the same as a zip to cover?