A Fortune report examines the different types of technology that can improve sleep.
Sleep technology’s modern roots reach back to the 1980s, when Bob and JoAnn Walker founded Select Comfort, with its “sleep number” adjustable mattresses. In Q3 2014, the company reported sales of $323 million, raising its full-year outlook to $1.12 per share.
Recently, dozens, if not hundreds, of devices have hit the market – and experts say that number’s only going to increase.
