Okay.  So some folks at Northwestern have figured out folks remember more when they sleep with regulated bursts of “Pink noise,” which sounds kind of like a waterfall and is definitely more agreeable than “white noise,”  the irritating product of a small round machine that people have placed inside my office or outside my door for many years.

I have never used it. It is supposed to mask discussion noises coming from my office.  Me being me, those noises coming from my office include at least one “happy song” and at least one shriek of laughter.  “White noise” at enough volume to stamp out anything like that would make me intolerably irritable. Read more on Using Noise To Get To Sleep…