The economic downturn, during which we have seen productivity growth slow across most developed economies, has only increased these bouts of insomnia for many of us. (social.hays.com)
The reasons for insomnia vary from person to person, but it's typically not due to a sleeping pill deficiency. (susancnt.com)
For most people, it is very calming and refreshing, and it can help with insomnia as well! (thebostondaybook.com)