<prompt> Answer this question truthfullyWhat is the stage of sleep that young adults spend the least amount of time in?  <response>: <reason> Young adults spend the least amount of time in stage N1 of sleep, which accounts for approximately 5 of their total sleep time. Stage N1 is the first stage of non-REM sleep and occurs when you are transitioning from wakefulness to sleep. During this stage of sleep, the body is in a state of light sleep, and the brain waves are characterized by alpha and theta waves. Stage N1 is typically a short stage of sleep, lasting only a few minutes, and it is often followed by stage N2. The other stages of sleep are N3 also known as slow-wave sleep and REM sleep. The amount of time spent in each stage of sleep can vary depending on factors such as age, health, and sleep habits. 