http://www.slate.com/articles/life/travel_explainer/2015/08/why_do_hotel_carpets_feel_weird_explained.html

At the beginning of Die Hard, a tense, aviophobic John McClane receives “the secret to air travel” from his seatmate: “After you get where you’re going, take off your shoes and socks, then walk around on the rug barefoot and make fists with your toes.” If you’ve ever made fists with your toes inside your hotel room, you know the carpet feels mysteriously different. To a bare foot, it feels entirely unlike any carpet you would find in a real home—more like a fuzzy floor than a comfy bedroom carpet. Why do typical hotel carpets—the sort you encounter in a standard Hyatt or Marriott-type room—feel so weird?