Sleep and Pain?
Sleep disorders lead to 253 million days of sick leave a year in the United States. 63.2 billion dollars are lost a year due to insomnia. A third of this is due to absence from work, while the other two thirds is due to a loss in productivity at work. 10% of the population suffers from insomnia. Sleep apnea affects 4-5% of the population.
University of Bergen, November 2012