Does making a bed increase the number of dust mites?

A room mate of mine is really picky about dust mites and how we can try to reduce the number of mites in our room. Recently she mentioned that making our beds can trap moisture in between the sheets, and because dust mites thrive in increased moisture, making the bed increases the number of dust mites. I looked this up on the internet and in books but while I can't find anything to support her claim, I've found nothing that refutes it. I'm concerned that she's just excusing the fact that she's lazy and doesn't want to have to make her bed. Any info? Websites? Suggestions?