In 2017, they launched a sleep program with a sleep coach, sleep monitoring, a wellness screening, bedtime tea service and a goody bag of sleep-health supplies. Although consumers have opened their wallets in pursuit of better sleep since the debut of memory foam in 1966, the past five years have been a boom for the sleep-wellness industry. The main value of the sleep score -- and sleep tracking in general -- is not to affect your sleep, but to tell you when you need to change your waking habits. In her study on sleep- tracking habits, Robbins also found a disparity in who tracks their sleep: the higher a person's income, the more likely they were to track their sleep. [Extracted from the article]