You mention something interesting:<p>&quot;... and really only when I stay up late&quot;<p>My &quot;productive mania&quot; that I mention in this thread, was predominantly late at night.  I&#x27;ve always been something of a night owl, and at the time in my life where I began programming, I was able to stay up very late, and sleep in late.<p>Sometimes I wonder if productive mania is attainable only when you&#x27;re functioning day-to-day, in your &#x27;ideal&#x27; sleep cycle.