From the page: "Turn It Off
Turn off anything with an âoeon and offâ switch at least an hour before bed. Screen time is visually stimulating and makes it difficult to go straight to sleep after our minds have been activated by a television or computer. In addition, computers and cell phones are often linked to work, which creates stress right before we want our bodies to rest. Going from work mode to sleep mode is too much of a transition for our minds and bodies to make in such a short period of time."