Dream ticket: how sleep became a billion-dollar business

Tiredness is the new norm – no wonder companies are selling sleep aids from spooning robots to cuddle blankets. How did a restful night become a luxury item?Rockwell Shah speaks with almost evangelical zeal about sleep. He is the CEO of Pzizz, an app that “designs dynamic audio” to get you to “sleep at the push of a button”; for him, bedtime is a “sleep experience”. Does he use his own app? “Oh my God! All the time.” As a sleep entrepreneur,