I always maintain that we can get along pretty well for a while without a mayor or other city officials, but not so without the janitors. I usually mention this when talking about dignity of labour. So it is good news to hear sleep being referred to as our “mental janitor” in New York Times.
A recent article in the New York Times, Good Night. Sleep Clean., reported that sleep “… may play a crucial role in our brain’s physiological maintenance. As your body sleeps, your brain is quite actively playing the part of mental janitor: It’s clearing out all of the junk that has accumulated as a result of your daily thinking.”
The March 2014 issue of Popular Science has a number of features on the Science of Sleep. Scroll down the page for the different articles.
And armed with all that… I wish you good sleep!