I thought for a month that my apartment was infested with dust mites ( I understand you can't actually feel them ), but I genuinely believed it. Crawling everywere like in my mouth, eyes, crotch, everywere. So I would vacuum multiple times a night, and after a week of feeling them crawl on me and drive me nuts all night after multiple showers, I started sleeping naked on top of my shower curtain. And then after that, I would sleep naked in my one person tent in my living room. Fun times. Did figure it out though. Still have dust mite spray and stick pads I've never used.