Book (Practical) Living Sleep is the strongest solution

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Home Economics and life environment studies
Life and Living
Best-selling sleep books in the US and UK. Highly praised by Garden Newspaper and Time magazine! Selected as the 2017 Best Books of NPR national public radio NPR! Sunday Times's second best nonfiction bestseller! Finally, a book of sleep books flooded with offers from all over the world has arrived in Japan for the first time! If you sleep less than 7 hours, you will die early? If you take a nap before learning, your ability to learn dramatically increases? NBA, NFL, Pixar … The best sleep method taught by the best sleep consultant World-renowned neuroscientists and sleep experts provide the latest knowledge of sleep science.