I cannot find it but it was a book called “the book on rest” from the 50’s or so that an old housemate Tim had.

Over time I’ve realized the value of stopping time and closing your eyes & just thinking about the swirling ideas or how to attack a new project or ob·sta·cle, resting, guess also called meditation.  These can be work or technological, also mechanical like when i was in 3lane traffic in Ohio with no shoulder and a broken rim and tire.  It took about 30 min of sitting on the skinny shoulder to think with my eyes closed of how to accomplish fixing my trailer.  Then got out with a plan & got all my crap out and did it. Fixing things is easy but wish I had a navigator.  I rest more but can think much clearer///  More work in the morning so i think I’ll rest///

The closest thing i can find at 1:30am is a new book on rest on amazon, https://www.amazon.com/Rest-More-Done-When-Work/dp/0465074871/ref=sr_1_1?s=books&ie=UTF8&qid=1513403824&sr=1-1&keywords=the+book+of+rest

synopsis:
Overwork is the new normal. Rest is something to do when the important things are done-but they are never done. Looking at different forms of rest, from sleep to vacation, Silicon Valley futurist and business consultant Alex Soojung-Kim Pang dispels the myth that the harder we work the better the outcome. He combines rigorous scientific research with a rich array of examples of writers, painters, and thinkers—from Darwin to Stephen King—to challenge our tendency to see work and relaxation as antithetical. “Deliberate rest,” as Pang calls it, is the true key to productivity, and will give us more energy, sharper ideas, and a better life. Rest offers a roadmap to rediscovering the importance of rest in our lives, and a convincing argument that we need to relax more if we actually want to get more done.