One of the most interesting things I have learned in the Psychology 101 is the concept of consciousness; in particular the biology of sleep. As a busy college student and a soon-to-be busy engineer, I will be battling the constant struggle of balancing work, recreational time, and sleep. Like most people, I usually prioritize the first two over the latter. With the knowledge I have gained from the sleep cycles I will be able to understand my body's needs for sleep more thoroughly. It is better to take a twenty minute nap than an hour nap because of the way the REM cycles work. It would not be a good idea to wake up during the actual REM stage because it would make you more tired. I did a little investigation on how I could wake up during the proper times, and I found an iPhone app that apparently measures sleep cycles, and wakes the user up at a time that allows your body to feel most rested. I plan on trying this app out but I will keep in mind the principles of scientific thinking that I have learned from the text which may help me in deciding the validity of this claim.