Sleep apnea occurs when you pause or take shallow breaths while sleeping. Sleepwalking happens when you are in a deep sleep and start walking or performing some kind of complex behavior. Narcolepsy is a brain disorder in which you have poor control of your sleep cycles. I thought you discovered a lot of interesting things. For example, how sleepwalkers are known to drive even long distances or how people with narcolepsy can simply fall asleep without any warning. On the other hand, I think all these sleep disorders would be extremely difficult to deal with and I feel sorry for the people who have to deal with any of these.