What does the term "shift-sleeping" mean?

Shift work sleep disorder (SWSD) occurs in individuals who work nontraditional hours like split shift, graveyard shifts, early morning shifts, or rotating shifts. It's characterized by excessive sleepiness, lack of refreshing sleep, and drowsiness. These symptoms can affect both work and leisure time. Both symptoms are predominant in SWSD. There are numerous shift work schedules, and they may be permanent, intermittent, or rotating; consequently, the manifestations of SWSD are quite variable. Shift working can disrupt what are known as circadian rhythms, the internal "body clock". This can disrupt the normal workings of a hormone called melatonin. This disruption can lead to poor sleep and chronic fatigue.

Explanation:

I hope this helps you! Good luck and have a great day/night. ❤️✨

the excerpt from chapter 2 of "animal farm", by george orwell that is an example of foreshadowing is "these three (snowball, napoleon, and squealer) had elaborated old major's teachings into a complete system of thought to which they gave the name of animalism." animal farm is an allegory of how czarist russia developed into communist russia with all its corruption. old major's teachings represent marx's theories turned into communism, animalism, by the three pigs. this foreshadows the oppression and corruption that will follow this revolt.