Even a ten or fifteen minute nap in the middle of the day can be the equivalent of an hour and a half of extra sleep the night before, and it can raise your effective IQ by ten points.
Talks at Google (Oct 28, 2014)
“A good rule of thumb is every couple of hours take fifteen minutes off. Naps are also very helpful, short naps. Even a ten or fifteen minute nap in the middle of the day can be the equivalent of an hour and a half of extra sleep the night before, and it can raise your effective IQ by ten points.”
Talks at Google (Oct 28, 2014)
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Daniel Levitin 76
American psychologist 1957Related quotes
As quoted in The Wilson Era; Years of War and After, 1917–1923 (1946) by Josephus Daniels, p. 624. Referenced in "Bartleby.com" http://www.bartleby.com/73/1288.html
1920s and later
“I never take a nap after dinner but when I have had a bad night; and then the nap takes me.”
1775
Bartlett's Familiar Quotations, 10th ed. (1919), Life of Johnson (Boswell)
“Take a nap in a fireplace and you'll sleep like a log.”
Testimony before the Constitutional Affairs Committee http://www.publications.parliament.uk/pa/cm200304/cmselect/cmconst/uc1247-i/uc124702.htm, November 9, 2004
Interview in Paris Review Summer 2011 http://www.theparisreview.org/interviews/6089/the-art-of-fiction-no-211-william-gibson
Quoted in the October 2017 issue of <i>Men’s Health</i> magazine, page 41.