I have always found that people have interesting conversations about sleep. As a starting point let me get my perspective out of the way. I either do not have or do not remember my dreams most of the time. Once every few years or months seemingly at random I will remember a dream in a fuzzy hard to recall way. I have never had trouble falling asleep. I don't particularly enjoy sleep but If I lie down and close my eyes I am asleep within minutes. I tend to have trouble waking up. I will sleep 12-14 hours if I am not forcibly awakened or with the use of great amounts of willpower. Yet I hear about people who keep dream journals, Have nightmares, trouble sleeping, need pills, suffer from insomnia, etc... There really seems to be a great variety of human experience when it comes to sleep. I wonder why that is... A group of crows is called a murder or congress. A group of owls is a parliament or wisdom. A group of flamingos is called a flamboyance.