Just something I have anecdotally noticed occuring with more frequency. Several creators I follow have spoken about being diagnosed with ADHD in recent years, and their experiences with medication like adderall. When I was a kid, ADHD was something only kids had, and was famously overdiagnosed in America as an excuse to get a ton of kids on pills.
Is this just a more recent extension of that? Is it just as simple as big pharma looking for more addicts? I have definitely noticed that my own attention span has been eroded by the 24 hour news cycle and too much screen time, but I'd never think to go to the doctor about it.
The persisting urge but inability to rest that you are describing is more commonly referred to as "insomnia" clinically as well as colloquially.
The "decreased need for sleep" usually refers to a state where volume of sleep hours decreases but it generally isn't bothersome to the individual.
The other common usage other than drug-induced is in the setting of mania episodes from those with bipolar disorder. Manic patients sleep less but aren't particularly concerned with it because they are Go, Go, Go.