Vaiva Ignataviciute, 25, is a web developer from Denmark. In her teens, she discovered she loved the sound of turning pages. The mild swoosh gave her a tingling sensation, and left her feeling calmer. What Ignataviciute was experiencing is known as autonomous sensory meridian response or ASMR. Ignataviciute now provides customised ASMR, for a fee, to connoisseurs. She is among thousands creating niche ASMR content on demand, on platforms such as Fiverr and Cameo, YouTube, Instagram and OnlyFans.