I got interested in this book because I want to know how I can sleep better. Did I get my questions answered? I would say most of them. The book was written in 4 parts. Readers can read each part individually without following the order. That was exactly what I did. Reading the book was out of order and focused on topics that interested me most - jetlag, sleeping pills, dreams, healthy sleep, etc. Part 1. This Thing Called Sleep What I liked most about this book is how it dispelled the myths about sleeping. Let's start with sleeping pills. Most of the sleeping pills on the market are based on Melatonin. Basically, it helps regulate the timing of when sleep occurs, i.e., it does not put you to sleep. Taking melatonin for jet lag does not guarantee we will be able to sleep, but the timing signal significantly increases the likelihood of sleep. Another misconception is that taking alcoholic drinks before sleep will help us sleep better. It turns out that it has the opposite effect. Part 2. Why Should You Sleep I used to hear stories about great people who only slept a few hours every day, so they got a lot more things done versus the ordinary folks. However, even people such as Bill Gates are saying that now, having 8 hours of sleep is important. Sleep deprivation can be a serious problem. Workers will lose productivity if they do not get enough sleep, and it may affect their health as their immune system is weakened. A more serious scenario is when we do not have enough sleep, and we are driving. Part 3. How and Why We Dream I always try to interpret a dream, especially a scary one, and find out what it means. The author looked at dreams from a scientific standpoint. It's almost like fortune telling when we try to figure out the meaning of a dream. However, with the experimental data collected, they were able to show that people get more creative and are able to solve tough problems during their dreams. He cited examples from well-known people such as Thomas Edison and Paul McCartney. Very interesting findings. I need to dream more so I can be more creative! Part 4. From Sleeping Pills to Society-Transformed This is the part I enjoyed most, as it answered most of my questions. With modern society, we have more and more distractions every day. In addition to computers at work and at home, we have many electronic gadgets such as iPads, cell phones, iWatch, etc. And it is actually not healthy to spend so much time on these electronic devices before going to bed. It was also very enlightening for me to learn that there are a number of factors affecting our sleep, such as the blue night from the LED monitor, the temperature, and lighting in our bedroom, etc. The author stated clearly at the beginning of his book that it is not designed to be a self-help guide, and it's not written to target or treat sleep disorders. However, he did include an appendix, "Twelve Tips for Healthy Sleep." The book speaks with data and facts. I learned a lot from it, and I thoroughly enjoyed reading this book. On the other hand, for folks not interested in all the details of the experimental data, you can still get a lot of good insights from the book.