If this study is anything to go by, it might not be a bad idea.
Food allergens in mattress dust in Norwegian homes – a potentially important source of allergen exposure.
A thought for you, anyway, in case it helps..
A good place to get allergy stuff like that can be Allergy Best Buys, the supplier I’ve listed in the allergy section on the website. Incidentally, I have put a newly updated free Allergy 101 Factsheet there for you too just last week.
Source: Foodsmatter enews.