Isn&#x27;t it possible that you are just more flexible to changing your cycle than others?<p>I need a lot of sleep - I&#x27;m very jealous of my coworkers that can stay up until 1-4 am and still be at work at 9.  Meanwhile I need 8 hours of sleep minimum, or after 3 days I&#x27;m a zombie.  Just last night I slept for 11 hours (no exaggeration) because I crashed after too many nights short of sleep.<p>I&#x27;m also a night owl - I wake at 7, and come night time I force myself to bed at 11 - I could be up for hours, but not if I want to wake on time, and while waking earlier would be great for my schedule, I can&#x27;t just shift my 8-hour sleep window - I&#x27;ve tried.<p>It&#x27;s possible that I and others with similar situations are just making excuses (and presumably that&#x27;s true for at least some), but it&#x27;s also possible that you are using your single experience to denounce others.<p>Please don&#x27;t assume that because something is easy for you that it must therefore be easy for everyone, and that others that claim otherwise are just lazy.