The advent of internet shopping sites like Amazon, eBay and Etsy have changed the way that a lot of Americans shop. It's also changed the way that a lot of people work. According to the United States Bureau of Labor and Statistics, warehouse jobs have increased by 90% since 2000.
Americans tend to be sleep deprived. The struggle to maintain a work-life balance isn't easy, and the pressure of keeping up with work, managing a household and -- every so often -- having a social life can make it difficult for people to get the sleep they need.